Toluene

Aromatic hydrocarbon

Toluene  |  |

|

Sample of toluene
Names
Preferred IUPAC name

Toluene[2]

Systematic IUPAC name

Methylbenzene

Other names

Methyl benzene[1]
Benzylane
Phenylmethane
Toluol
Anisen

Identifiers

CAS Number

* 108-88-3 Y

3D model (JSmol)

* Interactive image

Abbreviations  | PhMe
MePh
BnH
Tol
ChEBI |

* CHEBI:17578 N

ChEMBL |

* ChEMBL9113 Y

ChemSpider |

* 1108 Y

DrugBank |

* DB01900 N

ECHA InfoCard | 100.003.297

IUPHAR/BPS

* 5481

KEGG |

* C01455 Y

PubChem CID

* 1140

RTECS number |

* XS5250000

UNII |

* 3FPU23BG52 Y

UN number | 1294

CompTox Dashboard (EPA)

* DTXSID7021360

InChI

* InChI=1S/C7H8/c1-7-5-3-2-4-6-7/h2-6H,1H3 Y

Key: YXFVVABEGXRONW-UHFFFAOYSA-N Y

* InChI=1/C7H8/c1-7-5-3-2-4-6-7/h2-6H,1H3

Key: YXFVVABEGXRONW-UHFFFAOYAT

SMILES

* Cc1ccccc1

Properties

Chemical formula

| C6H5CH3
Molar mass | 92.141 g·mol−1
Appearance  | Colorless liquid[3]
Odor | sweet, pungent, benzene-like[4]
Density | 0.8623 g/mL (25 °C)[1]
Melting point | −95.0 °C (−139.0 °F; 178.2 K)[1]
Boiling point | 110.60 °C (231.08 °F; 383.75 K)[1]

Solubility in water

| 0.54 g/L (5 °C)
0.519 g/L (25 °C)
0.63 g/L (45 °C)
1.2 g/L (90 °C)[5]
log P | 2.73[6]
Vapor pressure | 2.8 kPa (20 °C)[4]

Magnetic susceptibility (χ)

| −66.1·10−6 cm3/mol[7]
Thermal conductivity | 0.1310 W/(m·K) (25 °C)[8]

Refractive index (nD)

| 1.4941 (25 °C)[1]
Viscosity | 0.560 mPa·s (25 °C)[9]
Structure

Dipole moment

| 0.375 D[10]
Thermochemistry[11]

Heat capacity (C)

| 157.3 J/(mol·K)

Std enthalpy of
formation (ΔfH⦵298)

| 12.4 kJ/mol

Std enthalpy of
combustion (ΔcH⦵298)

| 3.910 MJ/mol
Hazards
Occupational safety and health (OHS/OSH):

Main hazards

| highly flammable
GHS labelling:

Pictograms

Signal word

| Danger

Hazard statements

| H225, H304, H315, H336, H361d, H373

Precautionary statements

| P210, P240, P301+P310, P302+P352, P308+P313, P314, P403+P233
NFPA 704 (fire diamond)  |

Flash point | 4 °C (39 °F; 277 K)[12]

Autoignition
temperature

| 480[12] °C (896 °F; 753 K)
Explosive limits | 1.1–7.1%[12]

Threshold limit value (TLV)

| 50 mL/m3, 190 mg/m3
Lethal dose or concentration (LD, LC):

LC50 (median concentration)

| >26700 ppm (rat, 1 h)
400 ppm (mouse, 24 h)[13]

LCLo (lowest published)

| 55,000 ppm (rabbit, 40 min)[13]
NIOSH (US health exposure limits):

PEL (Permissible)

| TWA 200 ppm C 300 ppm 500 ppm (10-minute maximum peak)[4]

REL (Recommended)

| TWA 100 ppm (375 mg/m3) ST 150 ppm (560 mg/m3)[4]

IDLH (Immediate danger)

| 500 ppm[4]
Safety data sheet (SDS)  | SIRI.org
Related compounds

Related aromatic hydrocarbons

| benzene
xylene
naphthalene

Related compounds

| methylcyclohexane
methylcyclohexene
Supplementary data page
Toluene (data page)

Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).

N verify (what is YN ?)

Infobox references

Chemical compound

Toluene (/ˈtɒl.juiːn/), also known as toluol (/ˈtɒl.ju.ɒl, -ɔːl, -oʊl/), is a substituted aromatic hydrocarbon[15] with the chemical formula C6H5CH3, often abbreviated as PhCH3, where Ph stands for the phenyl group. It is a colorless, water-insoluble liquid with the odor associated with paint thinners. It is a mono-substituted benzene derivative, consisting of a methyl group (CH3) attached to a phenyl group by a single bond. As such, its systematic IUPAC name is methylbenzene. Toluene is predominantly used as an industrial feedstock and a solvent.

As the solvent in some types of paint thinner, permanent markers, contact cement and certain types of glue, toluene is sometimes used as a recreational inhalant[16] and has the potential of causing severe neurological harm.[17][18]

## History

[edit]

The compound was first isolated in 1837 through a distillation of pine oil by Pierre Joseph Pelletier and Filip Neriusz Walter, who named it rétinnaphte.[19][20] In 1841, Henri Étienne Sainte-Claire Deville isolated a hydrocarbon from balsam of Tolu (an aromatic extract from the tropical Colombian tree Myroxylon balsamum), which Deville recognized as similar to Walter's rétinnaphte and to benzene; hence he called the new hydrocarbon benzoène.[21][22][23] In 1843, Jöns Jacob Berzelius recommended the name toluin.[24] In 1850, French chemist Auguste Cahours isolated from a distillate of wood a hydrocarbon which he recognized as similar to Deville's benzoène and which Cahours named toluène.[25][26]

## Chemical properties

[edit]

The distance between carbon atoms in the toluene ring is 0.1399 nm. The C-CH3 bond is longer at 0.1524 nm, while the average C-H bond length is 0.111 nm.[27]

### Ring reactions

[edit]

Toluene reacts as a normal aromatic hydrocarbon in electrophilic aromatic substitution.[28][29][30] Because the methyl group has greater electron-releasing properties than a hydrogen atom in the same position, toluene is more reactive than benzene toward electrophiles. It undergoes sulfonation to give p-toluenesulfonic acid, and chlorination by Cl2 in the presence of FeCl3 to give ortho- and para- isomers of chlorotoluene.

Nitration of toluene gives mono-, di-, and trinitrotoluene, all of which are widely used. Dinitrotoluene is the precursor to toluene diisocyanate, a precursor to polyurethane foam. Trinitrotoluene (TNT) is an explosive.

Complete hydrogenation of toluene gives methylcyclohexane. The reaction requires a high pressure of hydrogen and a catalyst.

### Side chain reactions

[edit]

The C-H bonds of the methyl group in toluene are benzylic, therefore they are weaker than C-H bonds in simpler alkanes. Reflecting this weakness, the methyl group in toluene undergoes a variety of free radical reactions. For example, when heated with N-bromosuccinimide (NBS) in the presence of AIBN, toluene converts to benzyl bromide. The same conversion can be effected with elemental bromine in the presence of UV light or even sunlight.

Toluene may also be brominated by treating it with HBr and H2O2 in the presence of light.[31]

C6H5CH3 \+ Br2 → C6H5CH2Br + HBr

Benzoic acid and benzaldehyde are produced commercially by partial oxidation of toluene with oxygen. Typical catalysts include cobalt or manganese naphthenates.[32] Related but laboratory-scale oxidations involve the use of potassium permanganate to yield benzoic acid and chromyl chloride to yield benzaldehyde (Étard reaction).

The methyl group in toluene undergoes deprotonation only with very strong bases; its pKa is estimated using acidity trends to be approximately 43 in dimethyl sulfoxide (DMSO)[33][34] and its ion pair acidity is extrapolated to be 41.2 in cyclohexylamine (Cesium Cyclohexylamide) using a Bronsted correlation.[35][36]

### Miscibility

[edit]

Toluene is miscible (soluble in all proportions) with ethanol, benzene, diethyl ether, acetone, chloroform, glacial acetic acid and carbon disulfide, but immiscible with water.[37]

## Production

[edit]

Toluene occurs naturally at low levels in crude oil and is a byproduct in the production of gasoline by a catalytic reformer or ethylene cracker. It is also a byproduct of the production of coke from coal. Final separation and purification is done by any of the distillation or solvent extraction processes used for BTX aromatics (benzene, toluene, and xylene isomers).[15]

### Other preparative routes

[edit]

Toluene can be prepared by a variety of methods. For example, benzene reacts with methanol in presence of a solid acid to give toluene and water:[15]

C 6 H 6 + CH 3 OH → t o C 6 H 5 CH 3 + H 2 O {\displaystyle {\ce {C6H6 + CH3OH ->[t^o]C6H5CH3 + H2O}}}

## Uses

[edit]

Toluene is one of the most abundantly produced chemicals. Its main uses are (1) as a precursor to benzene and xylenes, (2) as a solvent for thinners, paints, lacquers, adhesives, and (3) as an additive for gasoline.[15]

### Precursor to benzene and xylenes

[edit]

Toluene is converted to benzene via hydrodealkylation:

C6H5CH3 \+ H2 → C6H6 \+ CH4

Its transalkylation gives a mixture of benzene and xylenes.

### Solvent

[edit]

Toluene is widely used in the paint, dye, rubber, chemical, glue, printing, and pharmaceutical industries as a solvent.[38] Nail polish, paintbrush cleaners, and stain removers may contain toluene. Manufacturing of explosives (TNT) uses it as well. Toluene is also found in cigarette smoke and car exhaust. If not in contact with air, toluene can remain unchanged in soil or water for a long time.[39]

Toluene is a common solvent, e.g. for paints, paint thinners, strippers, silicone sealants,[40] many chemical reactants, rubber, printing ink, adhesives (glues), lacquers, leather tanners, and disinfectants.[15]

### Fuel

[edit]

Toluene is an octane booster in gasoline fuels for internal combustion engines as well as jet fuel and turbocharged engines in Formula One.[41]

In Australia in 2003, toluene was found to have been illegally combined with petrol in fuel outlets for sale as standard vehicular fuel. Toluene incurs no fuel excise tax, while other fuels are taxed at more than 40%, providing a greater profit margin for fuel suppliers. The extent of toluene substitution is claimed to be 60%.[42][43]

### Niche applications

[edit]

In the laboratory, toluene is used as a solvent for carbon nanomaterials, including nanotubes and fullerenes, and it can also be used as a fullerene indicator. The color of the toluene solution of C60 is bright purple. Toluene is used as a cement for fine polystyrene kits (by dissolving and then fusing surfaces) as it can be applied very precisely by brush and contains none of the bulk of an adhesive. Toluene can be used to break open red blood cells in order to extract hemoglobin in biochemistry experiments. Toluene has also been used as a coolant for its good heat transfer capabilities in sodium cold traps used in nuclear reactor system loops. Toluene had also been used in the process of removing the cocaine from coca leaves in the production of Coca-Cola syrup.[44]

## Toxicology and metabolism

[edit]

Main article: Toluene toxicity

The environmental and toxicological effects of toluene have been extensively studied.[45]

Toluene is irritating to the eyes, skin, and respiratory tract. It is absorbed slowly through the skin. It can cause systemic toxicity by inhalation or ingestion. Inhalation is the most common route of exposure. Symptoms of toluene poisoning include central nervous system effects (headache, dizziness, drowsiness, ataxia, euphoria, tremors, hallucinations, seizures, and coma), chemical pneumonitis, respiratory depression, ventricular arrhythmias, nausea, vomiting, and electrolyte imbalances.[38]

Inhalation of toluene in low to moderate levels can cause tiredness, confusion, weakness, drunken-type actions, memory loss, nausea, loss of appetite, hearing loss,[46][47][48] and colour vision loss.[49] Some of these symptoms usually disappear when exposure is stopped. Inhaling high levels of toluene in a short time may cause light-headedness, nausea, or sleepiness, unconsciousness, and even death.[50][51] Toluene is, however, much less toxic than benzene, and as a consequence, largely replaced it as an aromatic solvent in chemical preparation. The US Environmental Protection Agency (EPA) states that the carcinogenic potential of toluene cannot be evaluated due to insufficient information.[52] In 2013, worldwide sales of toluene amounted to about 24.5 billion US dollars.[53]

Toluene occurs as an indoor air pollutant in a number of processes including electrosurgery, and can be removed from the air with an activated carbon filter.[54]

Similarly to many other solvents such as 1,1,1-trichloroethane and some alkylbenzenes, toluene has been shown to act as a non-competitive NMDA receptor antagonist and GABAA receptor positive allosteric modulator.[55] Additionally, toluene has been shown to display antidepressant-like effects in rodents in the forced swim test (FST) and the tail suspension test (TST),[55] likely due to its NMDA antagonist properties.

Toluene is sometimes used as a recreational inhalant ("glue sniffing"), likely on account of its euphoric and dissociative effects.[55]

Toluene inhibits excitatory ion channels such as the NMDA receptor, nicotinic acetylcholine receptor, and the serotonin 5-HT3 receptor. It also potentiates the function of inhibitory ion channels, such as the GABAA and glycine receptors. In addition, toluene disrupts voltage-gated calcium channels and ATP-gated ion channels.[56]

### Recreational use

[edit]

Toluene is used as an intoxicative inhalant in a manner unintended by manufacturers. People inhale toluene-containing products (e.g., paint thinner, contact cement, correction pens, model glue, etc.) for its intoxicating effect. The possession and use of toluene and products containing it are regulated in many jurisdictions, for the supposed reason of preventing minors from obtaining these products for recreational drug purposes. As of 2007, 24 US states had laws penalizing use, possession with intent to use, and/or distribution of such inhalants.[57] In 2005 the European Union banned the general sale of products consisting of greater than 0.5% toluene.[58]

### Bioremediation

[edit]

Several types of fungi including Cladophialophora, Exophiala, Leptodontidium (syn. Leptodontium), Pseudeurotium zonatum, and Cladosporium sphaerospermum, and certain species of bacteria can degrade toluene using it as a source of carbon and energy.[59]

## References

[edit]

1. ^ a b c d e Haynes, p. 3.514
2. ^ Nomenclature of Organic Chemistry : IUPAC Recommendations and Preferred Names 2013 (Blue Book). Cambridge: The Royal Society of Chemistry. 2014. p. 139\. doi:10.1039/9781849733069-00130. ISBN 978-0-85404-182-4. "Toluene and xylene are preferred IUPAC names, but are not freely substitutable; toluene is substitutable under certain conditions, but only for general nomenclature (see P-15.1.8 for a general substitution rules for retained names)."
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55. ^ a b c Cruz SL, Soberanes-Chávez P, Páez-Martinez N, López-Rubalcava C (June 2009). "Toluene has antidepressant-like actions in two animal models used for the screening of antidepressant drugs". Psychopharmacology. 204 (2): 279–86\. doi:10.1007/s00213-009-1462-2. PMID 19151967. S2CID 2235023.
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## Cited sources

[edit]

* Haynes, William M., ed. (2016). CRC Handbook of Chemistry and Physics (97th ed.). CRC Press. ISBN 978-1-4987-5429-3.

## External links

[edit]

Wikimedia Commons has media related to toluene.

Wikiquote has quotations related to Toluene.

* ATSDR – Case Studies in Environmental Medicine: Toluene Toxicity U.S. Department of Health and Human Services (public domain)
* American Industrial Hygiene Association, The Ear Poisons, The Synergist, November 2018.
* Toluene CDC – NIOSH Workplace Safety and Health Topic (DHHS)
* OSHA-NIOSH 2018. Preventing Hearing Loss Caused by Chemical (Ototoxicity) and Noise Exposure Safety and Health Information Bulletin (SHIB), Occupational Safety and Health Administration and the National Institute for Occupational Safety and Health. SHIB August 3, 2018. DHHS (NIOSH) Publication No. 2018-124.
* Toxic trouble: Chinese children fall ill after inhaling fumes from newly laid school running tracks, South China Morning Post, 2015

* v
* t
* e

Hydrocarbons

Saturated
aliphatic
hydrocarbons|

| Alkanes
CnH2n \+ 2|

| Linear alkanes|

* Methane
* Ethane
* Propane
* Butane
* Pentane
* Hexane
* Heptane
* Octane
* Nonane
* Decane

|

Branched alkanes|

* Isobutane
* Isopentane
* 3-Methylpentane
* Neopentane
* Isohexane
* Isoheptane
* Isooctane
* Isononane
* Isodecane

Cycloalkanes|

* Cyclopropane
* Cyclobutane
* Cyclopentane
* Cyclohexane
* Cycloheptane
* Cyclooctane
* Cyclononane
* Cyclodecane

Alkylcycloalkanes|

* Methylcyclopropane
* Methylcyclobutane
* Methylcyclopentane
* Methylcyclohexane
* Isopropylcyclohexane

Bicycloalkanes|

* Housane (bicyclo[2.1.0]pentane)
* Norbornane (bicyclo[2.2.1]heptane)
* Decalin (bicyclo[4.4.0]decane)

Polycycloalkanes|

* Adamantane
* Diamondoid
* Perhydrophenanthrene
* Sterane
* Cubane
* Prismane
* Dodecahedrane
* Basketane
* Churchane
* Pagodane
* Twistane

Other|

* Spiroalkanes

Unsaturated
aliphatic
hydrocarbons|

| Alkenes
CnH2n|

| Linear alkenes|

* Ethene
* Propene
* Butene
* Pentene
* Hexene
* Heptene
* Octene
* Nonene
* Decene

|

Branched alkenes|

* Isobutene
* Isopentene
* Isohexene
* Isoheptene
* Isooctene
* Isononene
* Isodecene

Alkynes
CnH2n − 2|

| Linear alkynes|

* Ethyne
* Propyne
* Butyne
* Pentyne
* Hexyne
* Heptyne
* Octyne
* Nonyne
* Decyne

|

Branched alkynes|

* Isopentyne
* Isohexyne
* Isoheptyne
* Isooctyne
* Isononyne
* Isodecyne

Cycloalkenes|

* Cyclopropene
* Cyclobutene
* Cyclopentene
* Cyclohexene
* Cycloheptene
* Cyclooctene
* Cyclononene
* Cyclodecene

Alkylcycloalkenes|

* Methylcyclopropene
* Methylcyclobutene
* Methylcyclopentene
* Methylcyclohexene
* Isopropylcyclohexene

Bicycloalkenes|

* Norbornene

Cycloalkynes|

* Cyclopropyne
* Cyclobutyne
* Cyclopentyne
* Cyclohexyne
* Cycloheptyne
* Cyclooctyne
* Cyclononyne
* Cyclodecyne

Dienes|

* Propadiene
* Butadiene
* Pentadiene
* Hexadiene
* Heptadiene
* Octadiene
* Nonadiene
* Decadiene

Other|

* Alkatriene
* Alkadiyne
* Cumulene
* Cyclooctatetraene
* Cyclododecatriene
* Enyne

Aromatic
hydrocarbons|

| PAHs|

| Acenes|

* Naphthalene
* Anthracene
* Tetracene
* Pentacene
* Hexacene
* Heptacene
* Octacene

|

Other|

* Azulene
* Fluorene
* Helicenes
* Circulenes
* Butalene
* Phenanthrene
* Chrysene
* Pyrene
* Corannulene
* Kekulene

Alkylbenzenes|

* Toluene

| C2-Benzenes|

| Xylenes|

* o-Xylene
* m-Xylene
* p-Xylene

|

Other|

* Ethylbenzene

C3-Benzenes|

| Trimethylbenzenes|

* Mesitylene
* Pseudocumene
* Hemellitene

|

Other|

* Cumene
* n-Propylbenzene
* 4-Ethyltoluene

C4-Benzenes|

| Cymenes|

* o-Cymene
* m-Cymene
* p-Cymene

|

Tetramethylbenzenes|

* Durene
* Prehnitene
* Isodurene

Other|

* n-Butylbenzene
* sec-Butylbenzene
* tert-Butylbenzene
* Isobutylbenzene

Other|

* Hexamethylbenzene
* 2-Phenylhexane
* 1,3,5-Triethylbenzene
* 1,3,5-Triheptylbenzene

Vinylbenzenes|

* Styrene
* Divinylbenzene
* 4-Vinyltoluene

Other|

* Benzene
* Cyclopropenylidene
* Phenylacetylene
* trans-Propenylbenzene

Other|

* Annulenes
* Annulynes
* Alicyclic compounds
* Petroleum jelly

* v
* t
* e

Hallucinogens

Psychedelics
(5-HT2AR agonists)|

* Tryptamines (e.g., DMT, psilocin, psilocybin, bufotenin, 5-MeO-DMT, AMT)
* Phenethylamines (e.g., mescaline, 2C-B, DOM, MDA, TMA, 2C-B-FLY, 25I-NBOMe)
* Lysergamides (e.g., LSD, ergine, isoergine)
* Others (e.g., quipazine, efavirenz)

* For a full list of serotonergic psychedelics, see the navbox here and the list here instead.

Dissociatives
(NMDAR antagonists)|

| Arylcyclo‐
hexylamines|

* Ketamine-related:
* 2-Fluorodeschloroketamine
* Arketamine ((R)-ketamine)
* Deschloroketamine
* Ethketamine (N-Ethylnorketamine)
* Esketamine ((S)-ketamine)
* Ketamine
* Methoxetamine
* Methoxmetamine
* Methoxyketamine
* MXiPr
* Norketamine
* Tiletamine

* PCP-related:
* 2'-Oxo-PCE
* 3-HO-PCE
* 3-HO-PCP
* 3-MeO-PCE
* 3-MeO-PCMo
* 3-MeO-PCP
* 3-MeO-PCPr
* 3-MeO-PCPy
* 4-MeO-PCP
* BDPC
* Dieticyclidine (PCDE)
* Eticyclidine (PCE)
* PCPr
* Phencyclidine (PCP)
* Rolicyclidine (PCPy)
* Tenocyclidine (TCP)

* Others: BTCP
* Gacyclidine
* PRE-084

|

Adamantanes|

* Amantadine
* Memantine
* Rimantadine

Diarylethylamines|

* Diphenidine
* Ephenidine
* Fluorolintane
* Methoxphenidine

Morphinans|

* Dextrallorphan
* Dextromethorphan
* Dextrorphan
* Racemethorphan
* Racemorphan

Others|

* 2-EMSB
* 2-MDP
* 8A-PDHQ
* Aptiganel
* Budipine
* Delucemine
* Dexoxadrol
* Dizocilpine
* Etoxadrol
* F-17475
* Herkinorin
* Ibogaine
* Midafotel
* NEFA
* Neramexane
* Nitrous oxide
* Noribogaine
* Perzinfotel
* RB-64
* Remacemide
* Selfotel
* Xenon

Deliriants
(mAChR antagonists)|

* Atropine
* Benactyzine
* Benzatropine
* Benzydamine
* Biperiden
* BRN-1484501
* Brompheniramine
* BZ
* CAR-226,086
* CAR-301,060
* CAR-302,196
* CAR-302,282
* CAR-302,368
* CAR-302,537
* CAR-302,668
* Chloropyramine
* Chlorphenamine
* Clemastine
* CS-27349
* Cyclizine
* Cyproheptadine
* Dicycloverine
* Dimenhydrinate
* Diphenhydramine
* Ditran
* Doxylamine
* EA-3167
* EA-3443
* EA-3580
* EA-3834
* Flavoxate
* Hyoscyamine
* JB-318
* JB-336
* Meclozine
* Mepyramine
* Orphenadrine
* Oxybutynin
* Pheniramine
* Phenyltoloxamine
* Procyclidine
* Promethazine
* Scopolamine
* Tolterodine
* Trihexyphenidyl
* Tripelennamine
* Triprolidine
* WIN-2299

Cannabinoids
(CB1R agonists)|

| Natural|

* Salvinorin A
* THC (Dronabinol)
* THCV

|

Synthetic|

| AM-x|

* AM-087
* AM-251
* AM-279
* AM-281
* AM-356
* AM-374
* AM-381
* AM-404
* AM-411
* AM-630
* AM-661
* AM-678
* AM-679
* AM-694
* AM-735
* AM-855
* AM-881
* AM-883
* AM-905
* AM-906
* AM-919
* AM-926
* AM-938
* AM-1116
* AM-1172
* AM-1220
* AM-1221
* AM-1235
* AM-1241
* AM-1248
* AM-1710
* AM-1714
* AM-1902
* AM-2201
* AM-2212
* AM-2213
* AM-2232
* AM-2233
* AM-2389
* AM-3102
* AM-4030
* AM-4054
* AM-4056
* AM-4113
* AM-6545

|

CP x|

* CP 47,497
* CP 55,244
* CP 55,940
* (±)-CP 55,940
* (+)-CP 55,940
* (-)-CP 55,940

HU-x|

* HU-210
* HU-211
* HU-239
* HU-243
* HU-308
* HU-320
* HU-331
* HU-336
* HU-345

JWH-x|

* JWH-007
* JWH-015
* JWH-018
* JWH-019
* JWH-030
* JWH-047
* JWH-048
* JWH-051
* JWH-057
* JWH-073
* JWH-081
* JWH-098
* JWH-116
* JWH-120
* JWH-122
* JWH-133
* JWH-139
* JWH-147
* JWH-148
* JWH-149
* JWH-149
* JWH-161
* JWH-164
* JWH-166
* JWH-167
* JWH-171
* JWH-175
* JWH-176
* JWH-181
* JWH-182
* JWH-184
* JWH-185
* JWH-192
* JWH-193
* JWH-194
* JWH-195
* JWH-196
* JWH-197
* JWH-198
* JWH-199
* JWH-200
* JWH-203
* JWH-205
* JWH-210
* JWH-210
* JWH-213
* JWH-220
* JWH-229
* JWH-234
* JWH-249
* JWH-250
* JWH-251
* JWH-253
* JWH-258
* JWH-300
* JWH-302
* JWH-307
* JWH-336
* JWH-350
* JWH-359
* JWH-387
* JWH-398
* JWH-424

Misc.|

* 4-HTMPIPO
* 5F-AB-FUPPYCA
* 5F-AB-PINACA
* 5F-ADB
* 5F-ADB-PINACA
* 5F-ADBICA
* 5F-AMB
* 5F-APINACA
* 5F-CUMYL-PINACA
* 5F-NNE1
* 5F-PB-22
* 5F-SDB-006
* A-796,260
* A-836,339
* AB-001
* AB-005
* AB-CHFUPYCA
* AB-CHMINACA
* AB-FUBINACA
* AB-PINACA
* ADAMANTYL-THPINACA
* ADB-CHMINACA
* ADB-FUBINACA
* ADB-PINACA
* ADBICA
* ADSB-FUB-187
* AMB-FUBINACA
* APICA
* APINACA
* APP-FUBINACA
* CB-13
* CUMYL-PICA
* CUMYL-PINACA
* CUMYL-THPINACA
* DMHP
* EAM-2201
* FAB-144
* FDU-PB-22
* FUB-144
* FUB-APINACA
* FUB-JWH-018
* FUB-PB-22
* FUBIMINA
* JTE 7-31
* JTE-907
* Levonantradol
* MDMB-CHMICA
* MDMB-CHMINACA
* MDMB-FUBINACA
* MEPIRAPIM
* MAM-2201
* MDA-19
* MN-18
* MN-25
* NESS-0327
* NESS-040C5
* Nabilone
* Nabitan
* NM-2201
* NNE1
* Org 28611
* Parahexyl
* PTI-1
* PTI-2
* PX-1
* PX-2
* PX-3
* QUCHIC
* QUPIC
* RCS-4
* RCS-8
* SDB-005
* SDB-006
* STS-135
* THC-O-acetate
* THC-O-phosphate
* THJ-018
* THJ-2201
* UR-144
* WIN 55,212-2
* XLR-11

*  For a full list of cannabinoids, see the navbox here and the list here instead.

κOR agonists|

* 2-EMSB
* Alazocine
* Bremazocine
* Butorphan
* Butorphanol
* Cyclazocine
* Cyclorphan
* Cyprenorphine
* Diprenorphine
* Enadoline
* Herkinorin
* Heroin
* HZ-2
* Ibogaine
* Ketazocine
* Levallorphan
* Levomethorphan
* Levorphanol
* LPK-26
* Metazocine
* Morphine
* Nalbuphine
* Nalmefene
* Nalorphine
* Noribogaine
* Oxilorphan
* Pentazocine
* Phenazocine
* Proxorphan
* Racemethorphan
* Racemorphan
* Salvinorin A
* Spiradoline
* Tifluadom
* U-50488
* U-69,593
* Xorphanol

GABAAR agonists|

* Gaboxadol (THIP)
* Ibotenic acid (Amanita muscaria)
* Muscimol (Amanita muscaria)

Inhalants
(mixed MoATooltip mechanism of action)|

* Aliphatic hydrocarbons
* Butane
* Gasoline
* Kerosene
* Propane
* Aromatic hydrocarbons
* Toluene
* Ethers
* Diethyl ether
* Enflurane
* Haloalkanes
* Chlorofluorocarbons
* Chloroform

Others|

* Aminochromes (e.g., adrenochrome, adrenolutin)
* Carbogen
* Certain GABAA receptor positive allosteric modulators (nonbenzodiazepines/Z-drugs) (e.g., eszopiclone, zaleplon, zolpidem, zopiclone)
* CI-966
* Cryogenine
* Glaucine
* Hallucinogenic bolete mushrooms (e.g., Lanmaoa asiatica)
* Harmala alkaloids/β-carbolines (e.g., harmaline, 6-methoxyharmalan)
* Iboga alkaloids/azepinoindoles (e.g., ibogaine)
* Isoaminile
* Noscapine
* Nutmeg (e.g., myristicin, elemicin)
* Oneirogens (e.g., Calea zacatechichi, galantamine, nicotine, Silene capensis)
* Prenoxdiazine
* Pukateine

* See also: Psychedelics
* Entactogens
* Stimulants
* Depressants
* List of hallucinogens

* v
* t
* e

GABAA receptor positive modulators

Alcohols|

* Brometone
* Butanol
* Chloralodol
* Chlorobutanol (cloretone)
* Ethanol (alcohol) (alcoholic drink)
* Ethchlorvynol
* Isobutanol
* Isopropanol
* Menthol
* Methanol
* Methylpentynol
* Pentanol
* Petrichloral
* Propanol
* tert-Butanol (2M2P)
* tert-Pentanol (2M2B)
* Tribromoethanol
* Trichloroethanol
* Triclofos
* Trifluoroethanol

Barbiturates|

* (-)-DMBB
* Allobarbital
* Alphenal
* Amobarbital
* Aprobarbital
* Barbexaclone
* Barbital
* Benzobarbital
* Benzylbutylbarbiturate
* Brallobarbital
* Brophebarbital
* Butabarbital/Secbutabarbital
* Butalbital
* Buthalital
* Butobarbital
* Butallylonal
* Carbubarb
* Crotylbarbital
* Cyclobarbital
* Cyclopentobarbital
* Difebarbamate
* Enallylpropymal
* Ethallobarbital
* Eterobarb
* Febarbamate
* Heptabarb
* Heptobarbital
* Hexethal
* Hexobarbital
* Metharbital
* Methitural
* Methohexital
* Methylphenobarbital
* Narcobarbital
* Nealbarbital
* Pentobarbital
* Phenallymal
* Phenobarbital
* Phetharbital
* Primidone
* Probarbital
* Propallylonal
* Propylbarbital
* Proxibarbital
* Reposal
* Secobarbital
* Sigmodal
* Spirobarbital
* Talbutal
* Tetrabamate
* Tetrabarbital
* Thialbarbital
* Thiamylal
* Thiobarbital
* Thiobutabarbital
* Thiopental
* Thiotetrabarbital
* Valofane
* Vinbarbital
* Vinylbital

Benzodiazepines|

* 2-Oxoquazepam
* 3-Hydroxyphenazepam
* Adinazolam
* Alprazolam
* Arfendazam
* Avizafone
* Bentazepam
* Bretazenil
* Bromazepam
* Bromazolam
* Brotizolam
* Camazepam
* Carburazepam
* Chlordiazepoxide
* Ciclotizolam
* Cinazepam
* Cinolazepam
* Clazolam
* Climazolam
* Clobazam
* Clonazepam
* Clonazolam
* Cloniprazepam
* Clorazepate
* Clotiazepam
* Cloxazolam
* CP-1414S
* Cyprazepam
* Delorazepam
* Demoxepam
* Diazepam
* Diclazepam
* Dimdazenil
* Doxefazepam
* Elfazepam
* Estazolam
* Ethyl carfluzepate
* Ethyl dirazepate
* Ethyl loflazepate
* Etizolam
* FG-8205
* Fletazepam
* Flubromazepam
* Flubromazolam
* Fludiazepam
* Flunitrazepam
* Flunitrazolam
* Flurazepam
* Flutazolam
* Flutemazepam
* Flutoprazepam
* Fosazepam
* Gidazepam
* Halazepam
* Haloxazolam
* Iclazepam
* Imidazenil
* Irazepine
* Ketazolam
* Lofendazam
* Lopirazepam
* Loprazolam
* Lorazepam
* Lormetazepam
* Meclonazepam
* Medazepam
* Menitrazepam
* Metaclazepam
* Mexazolam
* Midazolam
* Motrazepam
* N-Desalkylflurazepam
* Nifoxipam
* Nimetazepam
* Nitrazepam
* Nitrazepate
* Nitrazolam
* Nordazepam
* Nortetrazepam
* Oxazepam
* Oxazolam
* Phenazepam
* Pinazepam
* Pivoxazepam
* Prazepam
* Premazepam
* Proflazepam
* Pyrazolam
* QH-II-66
* Quazepam
* Reclazepam
* Remimazolam
* Rilmazafone
* Ripazepam
* Ro48-6791
* Ro48-8684
* SH-053-R-CH3-2′F
* Sulazepam
* Temazepam
* Tetrazepam
* Tolufazepam
* Triazolam
* Triflubazam
* Triflunordazepam (Ro5-2904)
* Tuclazepam
* Uldazepam
* Zapizolam
* Zolazepam
* Zomebazam

Carbamates|

* Carisbamate
* Carisoprodol
* Clocental
* Cyclarbamate
* Difebarbamate
* Emylcamate
* Ethinamate
* Febarbamate
* Felbamate
* Hexapropymate
* Hydroxyphenamate
* Lorbamate
* Mebutamate
* Meprobamate
* Nisobamate
* Pentabamate
* Phenprobamate
* Procymate
* Styramate
* Tetrabamate
* Tybamate

Flavonoids|

* 6-Methylapigenin
* Ampelopsin (dihydromyricetin)
* Apigenin
* Baicalein
* Baicalin
* Catechin
* EGC
* EGCG
* Hispidulin
* Linarin
* Luteolin
* Rc-OMe
* Skullcap constituents (e.g., baicalin)
* Wogonin

Imidazoles|

* Etomidate
* Metomidate
* Propoxate

Kava constituents|

* 10-Methoxyyangonin
* 11-Methoxyyangonin
* 11-Hydroxyyangonin
* Desmethoxyyangonin
* 11-Methoxy-12-hydroxydehydrokavain
* 7,8-Dihydroyangonin
* Kavain
* 5-Hydroxykavain
* 5,6-Dihydroyangonin
* 7,8-Dihydrokavain
* 5,6,7,8-Tetrahydroyangonin
* 5,6-Dehydromethysticin
* Methysticin
* 7,8-Dihydromethysticin
* Yangonin

Monoureides|

* Acecarbromal
* Apronal (apronalide)
* Bromisoval
* Carbromal
* Capuride
* Ectylurea

Neuroactive steroids|

* Acebrochol
* Allopregnanolone (brexanolone)
* Alfadolone
* Alfaxalone
* 3α-Androstanediol
* Androstenol
* Androsterone
* Certain anabolic-androgenic steroids
* Cholesterol
* DHDOC
* 3α-DHP
* 5α-DHP
* 5β-DHP
* DHT
* Etiocholanolone
* Ganaxolone
* Hydroxydione
* Minaxolone
* ORG-20599
* ORG-21465
* P1-185
* Posovolone
* Pregnanolone (eltanolone)
* Progesterone
* Renanolone
* SAGE-105
* SAGE-324
* SAGE-516
* SAGE-689
* SAGE-872
* Testosterone
* THDOC
* Zuranolone

Nonbenzodiazepines|

* Cyclopyrrolones: Eszopiclone
* Pagoclone
* Pazinaclone
* Suproclone
* Suriclone
* Zopiclone

* Imidazopyridines: Alpidem
* DS-1
* Necopidem
* Saripidem
* Zolpidem

* Pyrazolopyrimidines: Divaplon
* Fasiplon
* Indiplon
* Lorediplon
* Ocinaplon
* Panadiplon
* Taniplon
* Zaleplon

* Others: Adipiplon
* CGS-8216
* CGS-9896
* CGS-13767
* CGS-20625
* CL-218,872
* CP-615,003
* CTP-354
* ELB-139
* GBLD-345
* Imepitoin
* JM-1232
* L-838,417
* Lirequinil (Ro41-3696)
* NS-2664
* NS-2710
* NS-11394
* Pipequaline
* ROD-188
* RWJ-51204
* SB-205,384
* SX-3228
* TGSC01AA
* TP-003
* TPA-023
* TP-13
* U-89843A
* U-90042
* Viqualine
* Y-23684

Phenols|

* Fospropofol
* Propofol
* Thymol

Piperidinediones|

* Glutethimide
* Methyprylon
* Piperidione
* Pyrithyldione

Pyrazolopyridines|

* Cartazolate
* Etazolate
* ICI-190,622
* Tracazolate

Quinazolinones|

* Afloqualone
* Cloroqualone
* Diproqualone
* Etaqualone
* Mebroqualone
* Mecloqualone
* Methaqualone
* Methylmethaqualone
* Nitromethaqualone
* SL-164

Volatiles/gases|

* Acetone
* Acetophenone
* Acetylglycinamide chloral hydrate
* Aliflurane
* Benzene
* Butane
* Butylene
* Centalun
* Chloral
* Chloral betaine
* Chloral hydrate
* Chloroform
* Cryofluorane
* Desflurane
* Dichloralphenazone
* Dichloromethane
* Diethyl ether
* Enflurane
* Ethyl chloride
* Ethylene
* Fluroxene
* Gasoline
* Halopropane
* Halothane
* Isoflurane
* Kerosine
* Methoxyflurane
* Methoxypropane
* Nitric oxide
* Nitrogen
* Nitrous oxide
* Norflurane
* Paraldehyde
* Propane
* Propylene
* Roflurane
* Sevoflurane
* Synthane
* Teflurane
* Toluene
* Trichloroethane (methyl chloroform)
* Trichloroethylene
* Vinyl ether

Others/unsorted|

* 3-Hydroxybutanal
* α-EMTBL
* AA-29504
* Alogabat
* Avermectins (e.g., ivermectin)
* Bromide compounds (e.g., lithium bromide, potassium bromide, sodium bromide)
* Carbamazepine
* Chloralose
* Chlormezanone
* Clomethiazole
* Darigabat
* DEABL
* Deuterated etifoxine
* Dihydroergolines (e.g., dihydroergocryptine, dihydroergosine, dihydroergotamine, ergoloid (dihydroergotoxine))
* DS2
* Efavirenz
* Etazepine
* Etifoxine
* Fenamates (e.g., flufenamic acid, mefenamic acid, niflumic acid, tolfenamic acid)
* Fluoxetine
* Flupirtine
* Hopantenic acid
* KRM-II-81
* Lanthanum
* Lavender oil
* Lignans (e.g., 4-O-methylhonokiol, honokiol, magnolol, obovatol)
* Loreclezole
* Menthyl isovalerate (validolum)
* Monastrol
* Nicotinic acid
* Nicotinamide
* Org 25,435
* Phenytoin
* Propanidid
* Retigabine (ezogabine)
* Safranal
* Seproxetine
* Stiripentol
* Sulfonylalkanes (e.g., sulfonmethane (sulfonal), tetronal, trional)
* Terpenoids (e.g., borneol)
* Topiramate
* Valerian constituents (e.g., isovaleric acid, isovaleramide, valerenic acid, valerenol)

* Unsorted benzodiazepine site positive modulators: α-Pinene
* MRK-409 (MK-0343)
* TCS-1105
* TCS-1205

See also: Receptor/signaling modulators • GABA receptor modulators • GABA metabolism/transport modulators

* v
* t
* e

Glycine receptor modulators

Receptor
(ligands)|

| GlyRTooltip Glycine receptor|

* Agonists: β-Alanine
* β-ABA (BABA)
* β-AIBA
* Caesium
* D-Alanine
* D-Serine
* GABA
* Glycine
* Hypotaurine
* Ivermectin
* L-Alanine
* L-Proline
* L-Serine
* L-Threonine
* MDL-27531
* Milacemide
* Picolinic acid
* Propofol
* Quisqualamine
* Sarcosine
* Taurine

* Positive modulators: Alcohols (e.g., brometone, chlorobutanol (chloretone), ethanol (alcohol), tert-butanol (2M2P), tribromoethanol, trichloroethanol, trifluoroethanol)
* Alkylbenzene sulfonate
* Anandamide
* Barbiturates (e.g., pentobarbital, sodium thiopental)
* Chlormethiazole
* D12-116
* Dihydropyridines (e.g., nicardipine)
* Etomidate
* Ginseng constituents (e.g., ginsenosides (e.g., ginsenoside-Rf))
* Glutamic acid (glutamate)
* Ivermectin
* Ketamine
* Neuroactive steroids (e.g., alfaxolone, pregnenolone (eltanolone), pregnenolone acetate, minaxolone, ORG-20599)
* Nitrous oxide
* Penicillin G
* Propofol
* Tamoxifen
* Tetrahydrocannabinol
* Triclofos
* Tropeines (e.g., atropine, bemesetron, cocaine, LY-278584, tropisetron, zatosetron)
* Volatiles/gases (e.g., chloral hydrate, chloroform, desflurane, diethyl ether (ether), enflurane, halothane, isoflurane, methoxyflurane, sevoflurane, toluene, trichloroethane (methyl chloroform), trichloroethylene)
* Xenon
* Zinc

* Antagonists: 2-Aminostrychnine
* 2-Nitrostrychnine
* 4-Phenyl-4-formyl-N-methylpiperidine
* αEMBTL
* Bicuculline
* Brucine
* Cacotheline
* Caffeine
* Colchicine
* Colubrine
* Cyanotriphenylborate
* Dendrobine
* Diaboline
* Endocannabinoids (e.g., 2-AG, anandamide (AEA))
* Gaboxadol (THIP)
* Gelsemine
* iso-THAZ
* Isobutyric acid
* Isonipecotic acid
* Isostrychnine
* Laudanosine
* N-Methylbicuculline
* N-Methylstrychnine
* N,N-Dimethylmuscimol
* Nipecotic acid
* Pitrazepin
* Pseudostrychnine
* Quinolines (e.g., 4-hydroxyquinoline, 4-hydroxyquinoline-3-carboxylic acid, 5,7-CIQA, 7-CIQ, 7-TFQ, 7-TFQA)
* RU-5135
* Sinomenine
* Strychnine
* Thiocolchicoside
* Tutin

* Negative modulators: Amiloride
* Benzodiazepines (e.g., bromazepam, clonazepam, diazepam, flunitrazepam, flurazepam)
* Corymine
* Cyanotriphenylborate
* Daidzein
* Dihydropyridines (e.g., nicardipine, nifedipine, nitrendipine)
* Furosemide
* Genistein
* Ginkgo constituents (e.g., bilobalide, ginkgolides (e.g., ginkgolide A, ginkgolide B, ginkgolide C, ginkgolide J, ginkgolide M))
* Imipramine
* NBQX
* Neuroactive steroids (e.g., 3α-androsterone sulfate, 3β-androsterone sulfate, deoxycorticosterone, DHEA sulfate, pregnenolone sulfate, progesterone)
* Opioids (e.g., codeine, dextromethorphan, dextrorphan, levomethadone, levorphanol, morphine, oripavine, pethidine, thebaine)
* Picrotoxin (i.e., picrotin and picrotoxinin)
* PMBA
* Riluzole
* Tropeines (e.g., bemesetron, LY-278584, tropisetron, zatosetron)
* Verapamil
* Zinc

|

NMDARTooltip N-Methyl-D-aspartate receptor|

* See here instead.

Transporter
(blockers)|

| GlyT1Tooltip Glycine transporter 1|

* ACPPB
* ALX-5407 (NFPS)
* ASP2535
* Bitopertin (RG1678/RO4917838)
* CP-802079
* Ethanol (alcohol)
* Glycyldodecylamide
* GSK1018921
* Iclepertin
* LY-2365109
* Mardepodect
* ORG-24598
* ORG-25935 (SCH-900435)
* Pesampator (BIIB-104, PF-04958242)
* PF-03463275
* Sarcosine
* SNG-12 (Synapsinae)
* SSR-103,800
* SSR-504,734
* Tilapertin

|

GlyT2Tooltip Glycine transporter 2|

* ALX-1393
* Amoxapine
* Ethanol (alcohol)
* NAGly
* Opiranserin (VVZ-149)
* ORG-25543
* VVZ-368

See also
Receptor/signaling modulators
GABA receptor modulators
GABAA receptor positive modulators
Ionotropic glutamate receptor modulators

* v
* t
* e

Ionotropic glutamate receptor modulators

AMPARTooltip α-Amino-3-hydroxy-5-methyl-4-isoxazolepropionic acid receptor|

* Agonists: Main site agonists: 5-Fluorowillardiine
* Acromelic acid (acromelate)
* AMPA
* BOAA
* Domoic acid
* Glutamate
* Ibotenic acid
* Proline
* Quisqualic acid
* Willardiine; Positive allosteric modulators: Aniracetam
* Cyclothiazide
* CX-516
* CX-546
* CX-614
* Farampator (CX-691, ORG-24448)
* CX-717
* CX-1739
* CX-1942
* Diazoxide
* Hydrochlorothiazide (HCTZ)
* IDRA-21
* LY-392098
* LY-395153
* LY-404187
* LY-451646
* LY-503430
* Mibampator (LY-451395)
* Nooglutyl
* ORG-26576
* Oxiracetam
* PEPA
* Pesampator (BIIB-104, PF-04958242)
* Piracetam
* Pramiracetam
* S-18986
* Tulrampator (S-47445, CX-1632)

* Antagonists: ACEA-1011
* ATPO
* Becampanel
* Caroverine
* CNQX
* Dasolampanel
* DNQX
* Fanapanel (MPQX)
* GAMS
* Kaitocephalin
* Kynurenic acid
* Kynurenine
* Licostinel (ACEA-1021)
* NBQX
* PNQX
* Selurampanel
* Tezampanel
* Theanine
* Topiramate
* YM90K
* Zonampanel; Negative allosteric modulators: Barbiturates (e.g., pentobarbital, sodium thiopental)
* Cyclopropane
* Enflurane
* Ethanol (alcohol)
* Evans blue
* GYKI-52466
* GYKI-53655
* Halothane
* Irampanel
* Isoflurane
* Perampanel
* Pregnenolone sulfate
* Sevoflurane
* Talampanel; Unknown/unsorted antagonists: Minocycline

KARTooltip Kainate receptor|

* Agonists: Main site agonists: 5-Bromowillardiine
* 5-Iodowillardiine
* Acromelic acid (acromelate)
* AMPA
* ATPA
* Domoic acid
* Glutamate
* Ibotenic acid
* Kainic acid
* LY-339434
* Proline
* Quisqualic acid
* SYM-2081; Positive allosteric modulators: Cyclothiazide
* Diazoxide
* Enflurane
* Halothane
* Isoflurane

* Antagonists: ACEA-1011
* CNQX
* Dasolampanel
* DNQX
* GAMS
* Kaitocephalin
* Kynurenic acid
* Licostinel (ACEA-1021)
* LY-382884
* NBQX
* NS102
* Selurampanel
* Tezampanel
* Theanine
* Topiramate
* UBP-302; Negative allosteric modulators: Barbiturates (e.g., pentobarbital, sodium thiopental)
* Enflurane
* Ethanol (alcohol)
* Evans blue
* NS-3763
* Pregnenolone sulfate

NMDARTooltip N-Methyl-D-aspartate receptor|

* Agonists: Main site agonists: AMAA
* Aspartate
* Glutamate
* Homocysteic acid (L-HCA)
* Homoquinolinic acid
* Ibotenic acid
* NMDA
* Proline
* Quinolinic acid
* Tetrazolylglycine
* Theanine; Glycine site agonists: β-Fluoro-D-alanine
* ACBD
* ACC (ACPC)
* ACPD
* AK-51
* Apimostinel (NRX-1074)
* B6B21
* CCG
* D-Alanine
* D-Cycloserine
* D-Serine
* DHPG
* Dimethylglycine
* Glycine
* HA-966
* L-687,414
* L-Alanine
* L-Serine
* Milacemide
* Neboglamine (nebostinel)
* Rapastinel (GLYX-13)
* Sarcosine; Polyamine site agonists: Neomycin
* Spermidine
* Spermine; Other positive allosteric modulators: 24S-Hydroxycholesterol
* DHEATooltip Dehydroepiandrosterone (prasterone)
* DHEA sulfate (prasterone sulfate)
* Epipregnanolone sulfate
* Plazinemdor
* Pregnenolone sulfate
* SAGE-201
* SAGE-301
* SAGE-718

* Antagonists: Competitive antagonists: AP5 (APV)
* AP7
* CGP-37849
* CGP-39551
* CGP-39653
* CGP-40116
* CGS-19755
* CPP
* Kaitocephalin
* LY-233053
* LY-235959
* LY-274614
* MDL-100453
* Midafotel (d-CPPene)
* NPC-12626
* NPC-17742
* PBPD
* PEAQX
* Perzinfotel
* PPDA
* SDZ-220581
* Selfotel; Glycine site antagonists: 4-Cl-KYN (AV-101)
* 5,7-DCKA
* 7-CKA
* ACC
* ACEA-1011
* ACEA-1328
* Apimostinel (NRX-1074)
* AV-101
* Carisoprodol
* CGP-39653
* CNQX
* D-Cycloserine
* DNQX
* Felbamate
* Gavestinel
* GV-196771
* Harkoseride
* Kynurenic acid
* Kynurenine
* L-689560
* L-701324
* Licostinel (ACEA-1021)
* LU-73068
* MDL-105519
* Meprobamate
* MRZ 2/576
* PNQX
* Rapastinel (GLYX-13)
* ZD-9379; Polyamine site antagonists: Arcaine
* Co 101676
* Diaminopropane
* Diethylenetriamine
* Huperzine A
* Putrescine; Uncompetitive pore blockers (mostly dizocilpine site): 2-MDP
* 3-HO-PCP
* 3-MeO-PCE
* 3-MeO-PCMo
* 3-MeO-PCP
* 4-MeO-PCP
* 8A-PDHQ
* 18-MC
* α-Endopsychosin
* Alaproclate
* Alazocine (SKF-10047)
* Amantadine
* Aptiganel
* Argiotoxin-636
* Arketamine
* ARL-12495
* ARL-15896-AR
* ARL-16247
* Budipine
* Coronaridine
* Delucemine (NPS-1506)
* Dexoxadrol
* Dextrallorphan
* Dextromethadone
* Dextromethorphan
* Dextrorphan
* Dieticyclidine
* Diphenidine
* Dizocilpine
* Ephenidine
* Esketamine
* Etoxadrol
* Eticyclidine
* F-17475
* Fluorolintane
* Gacyclidine
* Ibogaine
* Ibogamine
* Indantadol
* Ketamine
* Ketobemidone
* Lanicemine
* Levomethadone
* Levomethorphan
* Levomilnacipran
* Levorphanol
* Loperamide
* Memantine
* Methadone
* Methorphan
* Methoxetamine
* Methoxphenidine
* Milnacipran
* Morphanol
* NEFA
* Neramexane
* Nitromemantine
* Noribogaine
* Norketamine
* Orphenadrine
* PCPr
* PD-137889
* Pethidine (meperidine)
* Phencyclamine
* Phencyclidine
* Propoxyphene
* Remacemide
* Rhynchophylline
* Rimantadine
* Rolicyclidine
* Sabeluzole
* Tabernanthine
* Tenocyclidine
* Tiletamine
* Tramadol; Ifenprodil (NR2B) site antagonists:
* Besonprodil
* Buphenine (nylidrin)
* CO-101244 (PD-174494)
* Eliprodil
* Haloperidol
* Isoxsuprine
* Radiprodil (RGH-896)
* Rislenemdaz (CERC-301, MK-0657)
* Ro 8-4304
* Ro 25-6981
* Safaprodil
* Traxoprodil (CP-101606); NR2A-selective antagonists: MPX-004
* MPX-007
* TCN-201
* TCN-213; Cations: Hydrogen
* Magnesium
* Zinc; Alcohols/volatile anesthetics/related: Benzene
* Butane
* Chloroform
* Cyclopropane
* Desflurane
* Diethyl ether
* Enflurane
* Ethanol (alcohol)
* Halothane
* Hexanol
* Isoflurane
* Methoxyflurane
* Nitrous oxide
* Octanol
* Sevoflurane
* Toluene
* Trichloroethane
* Trichloroethanol
* Trichloroethylene
* Urethane
* Xenon
* Xylene; Unknown/unsorted antagonists: ARR-15896
* Bumetanide
* Caroverine
* Conantokin
* D-αAA
* Dexanabinol
* Flufenamic acid
* Flupirtine
* FPL-12495
* FR-115427
* Furosemide
* Hodgkinsine
* Ipenoxazone (MLV-6976)
* MDL-27266
* Metaphit
* Minocycline
* MPEP
* Niflumic acid
* Pentamidine
* Pentamidine isethionate
* Piretanide
* Psychotridine
* Transcrocetin (saffron)

* Unsorted: Allosteric modulators: AGN-241751

* See also: Receptor/signaling modulators
* Metabotropic glutamate receptor modulators
* Glutamate metabolism/transport modulators

Authority control databases

National|

* Germany
* United States
* France
* BnF data
* Japan
* Israel

Other|

* Yale LUX

*[CID]: Compound ID
*[EPA]: U.S. Environmental Protection Agency
*[H225]: H225: Highly flammable liquid and vapour
*[H304]: H304: May be fatal if swallowed and enters airways
*[H315]: H315: Causes skin irritation
*[H336]: H336: May cause drowsiness or dizziness
*[H361d]: H361d: Suspected of damaging the unborn child
*[H373]: H373: May cause damage to organs through prolonged or repeated exposure
*[P210]: P210: Keep away from heat, hot surfaces, sparks, open flames and other ignition sources. No smoking.
*[P240]: P240: Ground and bond container and receiving equipment.
*[P301+P310]: P301+P310: IF SWALLOWED: Immediately call a POISON CENTER or doctor/physician.
*[P302+P352]: P302+P352: IF ON SKIN: Wash with soap and water.
*[P308+P313]: P308+P313: IF exposed or concerned: Get medical advice/attention.
*[P314]: P314: Get Medical advice/attention if you feel unwell.
*[P403+P233]: P403+P233: Store in a well ventilated place. Keep container tightly closed.
*[v]: View this template
*[t]: Discuss this template
*[e]: Edit this template
*[MoA]: mechanism of action
*[GABA]: γ-Aminobutyric acid
*[GlyR]: Glycine receptor
*[NMDAR]: N-Methyl-D-aspartate receptor
*[GlyT1]: Glycine transporter 1
*[GlyT2]: Glycine transporter 2
*[AMPAR]: α-Amino-3-hydroxy-5-methyl-4-isoxazolepropionic acid receptor
*[KAR]: Kainate receptor
*[DHEA]: Dehydroepiandrosterone