Piperine

Short description: Alkaloid responsible for the pungency of black pepper

Piperine

Names
Preferred IUPAC name

(2E,4E)-5-(2H-1,3-Benzodioxol-5-yl)-1-(piperidin-1-yl)penta-2,4-dien-1-one

Other names

(2E,4E)-5-(Benzo[d][1,3]dioxol-5-yl)-1-(piperidin-1-yl)penta-2,4-dien-1-one
Piperoylpiperidine
Bioperine

Identifiers

CAS Number

* 94-62-2 Y

3D model (JSmol)

* Interactive image

ChEBI |

* CHEBI:28821 N

ChEMBL |

* ChEMBL43185 N

ChemSpider |

* 553590 N

IUPHAR/BPS

* 2489

PubChem CID

* 638024

UNII |

* U71XL721QK N

InChI

* InChI=1S/C17H19NO3/c19-17(18-10-4-1-5-11-18)7-3-2-6-14-8-9-15-16(12-14)21-13-20-15/h2-3,6-9,12H,1,4-5,10-11,13H2/b6-2+,7-3+ N

Key: MXXWOMGUGJBKIW-YPCIICBESA-N N

* InChI=1/C17H19NO3/c19-17(18-10-4-1-5-11-18)7-3-2-6-14-8-9-15-16(12-14)21-13-20-15/h2-3,6-9,12H,1,4-5,10-11,13H2/b6-2+,7-3+

Key: MXXWOMGUGJBKIW-YPCIICBEBY

SMILES

* O=C(N1CCCCC1)\C=C\C=C\c2ccc3OCOc3c2

Properties

Chemical formula

| C17H19NO3
Molar mass | 285.343 g·mol−1
Density | 1.193 g/cm3
Melting point |  130 °C (266 °F; 403 K)
Boiling point | Decomposes

Solubility in water

| 40 mg/l
Solubility in ethanol | soluble
Solubility in chloroform | 1 g/1.7 ml
Hazards
Safety data sheet | MSDS for piperine

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

Piperine

Scoville scale| 150,000[1] SHU

Piperine, possibly along with its isomer chavicine,[2] is the compound[3] responsible for the pungency of black pepper and long pepper. It has been used in some forms of traditional medicine.[4]

## Contents

* 1 Preparation
* 2 Reactions
* 3 History
* 4 Biochemistry and medicinal aspects
* 5 See also
* 6 References

## Preparation

Due to its poor solubility in water, piperine is typically extracted from black pepper by using organic solvents like dichloromethane.[5] The amount of piperine varies from 1–2% in long pepper, to 5–10% in commercial white and black peppers.[6][7]

Piperine can also be prepared by treating the solvent-free residue from a concentrated alcoholic extract of black pepper with a solution of potassium hydroxide to remove resin (said to contain chavicine, an isomer of piperine).[7] The solution is decanted from the insoluble residue and left to stand overnight in alcohol. During this period, the alkaloid slowly crystallizes from the solution.[8]

Piperine has been synthesized by the action of piperonoyl chloride on piperidine.[7]

## Reactions

Piperine forms salts only with strong acids. The platinichloride B4·H2PtCl6 forms orange-red needles ("B" denotes one mole of the alkaloid base in this and the following formula). Iodine in potassium iodide added to an alcoholic solution of the base in the presence of a little hydrochloric acid gives a characteristic periodide, B2·HI·I2, crystallizing in steel-blue needles with melting point 145 °C.[7]

Piperine can be hydrolyzed by an alkali into piperidine and piperic acid.[7]

In light, especially ultra-violet light, piperine is changed into its isomers chavicine, isochavicine and isopiperine, which are tasteless.[9][2]

## History

Piperine was discovered in 1819 by Hans Christian Ørsted, who isolated it from the fruits of Piper nigrum, the source plant of both black and white pepper.[10] Piperine was also found in Piper longum and Piper officinarum (Miq.) C. DC. (=Piper retrofractum Vahl), two species called "long pepper".[11]

## Biochemistry and medicinal aspects

A component of pungency by piperine results from activation of the heat- and acidity-sensing transient receptor potential channel ion channels, TRPV1 and TRPA1, on nociceptors, the pain-sensing nerve cells.[12] Piperine is under preliminary research for its potential to affect bioavailability of other compounds in food and dietary supplements, such as a possible effect on the bioavailability of curcumin.[13]

## See also

* Piperidine, a cyclic six-membered amine that results from hydrolysis of piperine
* Piperic acid, the carboxylic acid also derived from hydrolysis of piperine
* Capsaicin, the active piquant chemical in chili peppers
* Allyl isothiocyanate, the active piquant chemical in mustard, radishes, horseradish, and wasabi
* Allicin, the active piquant flavor chemical in raw garlic and onions (see those articles for discussion of other chemicals in them relating to pungency, and eye irritation)
* Ilepcimide
* Piperlongumine

## References

1. ↑ Mangathayaru, K. (2013) (in en). Pharmacognosy: An Indian perspective. Pearson Education India. pp. 274. ISBN 9789332520264. https://books.google.com/books?id=2UQ8BAAAQBAJ.
2. ↑ 2.0 2.1 De Cleyn, R; Verzele, M (1972). "Constituents of peppers. I Qualitative Analysis of Piperine Isomers". Chromatografia 5: 346–350. doi:10.1007/BF02315254. https://www.chm.bris.ac.uk/sillymolecules/chavicine.pdf. Retrieved 26 September 2023.
3. ↑ An Encyclopedia of Chemicals, Drugs, and Biologicals (11th ed.), Merck, 1989, p. 7442, ISBN 091191028X
4. ↑ Srinivasan, K. (2007). "Black pepper and its pungent principle-piperine: A review of diverse physiological effects". Critical Reviews in Food Science and Nutrition 47 (8): 735–748. doi:10.1080/10408390601062054. PMID 17987447.
5. ↑ Epstein, William W.; Netz, David F.; Seidel, Jimmy L. (1993). "Isolation of Piperine from Black Pepper". J. Chem. Educ. 70 (7): 598. doi:10.1021/ed070p598. Bibcode: 1993JChEd..70..598E.
6. ↑ "Pepper". http://www.tis-gdv.de/tis_e/ware/gewuerze/pfeffer/pfeffer.htm#selbsterhitzung.
7. ↑ 7.0 7.1 7.2 7.3 7.4 Henry, Thomas Anderson (1949). The Plant Alkaloids (4th ed.). The Blakiston Company. p. 1-2.
8. ↑ Ikan, Raphael (1991). Natural Products: A Laboratory Guide (2nd ed.). San Diego, CA: Academic Press. pp. 223–224. ISBN 0123705517. https://books.google.com/books?id=B7P8HQimBAIC&q=Natural+Products:+A+Laboratory+Guide+2nd+Ed..
9. ↑ Kozukue, Nobuyuki; Park, Mal-Sun; others, and 5 (2007). "Kinetics of Light-Induced Cis−Trans Isomerization of Four Piperines and Their Levels in Ground Black Peppers as Determined by HPLC and LC/MS". J. Agric. Food Chem. 55 (17): 7131–7139. doi:10.1021/jf070831p. PMID 17661483. https://doi.org/10.1021/jf070831p. Retrieved 26 September 2023.
10. ↑ Ørsted, Hans Christian (1820). "Über das Piperin, ein neues Pflanzenalkaloid" (in de). Schweiggers Journal für Chemie und Physik 29 (1): 80–82. https://books.google.com/books?id=k-M4AAAAMAAJ&pg=PA80.
11. ↑ Friedrich A. Fluckiger; Daniel Hanbury (1879). Pharmacographia : a History of the Principal Drugs of Vegetable Origin, Met with in Great Britain and British India. London: Macmillan. p. 584. https://archive.org/details/pharmacographia01hanbgoog.
12. ↑ McNamara, F. N.; Randall, A.; Gunthorpe, M. J. (March 2005). "Effects of piperine, the pungent component of black pepper, at the human vanilloid receptor (TRPV1)". British Journal of Pharmacology 144 (6): 781–790. doi:10.1038/sj.bjp.0706040. PMID 15685214.
13. ↑ Kunnumakkara, A. B.; Bordoloi, D.; Padmavathi, G.; Monisha, J.; Roy, N. K.; Prasad, S.; Aggarwal, B. B. (2017). "Curcumin, the Golden Nutraceutical: Multitargeting for Multiple Chronic Diseases". British Journal of Pharmacology 174 (11): 1325–1348. doi:10.1111/bph.13621. PMID 27638428.

* v
* t
* e

TRP channel modulators

TRPA|

| Activators|

* 4-Hydroxynonenal
* 4-Oxo-2-nonenal
* 4,5-EET
* 12S-HpETE
* 15-Deoxy-Δ12,14-prostaglandin J2
* α-Sanshool (ginger, Sichuan and melegueta peppers)
* Acrolein
* Allicin (garlic)
* Allyl isothiocyanate (mustard, radish, horseradish, wasabi)
* AM404
* Bradykinin
* Cannabichromene (cannabis)
* Cannabidiol (cannabis)
* Cannabigerol (cannabis)
* Cinnamaldehyde (cinnamon)
* CR gas (dibenzoxazepine; DBO)
* CS gas (2-chlorobenzal malononitrile)
* Curcumin (turmeric)
* Dehydroligustilide (celery)
* Diallyl disulfide
* Dicentrine (Lindera spp.)
* Farnesyl thiosalicylic acid
* Formalin
* Gingerols (ginger)
* Hepoxilin A3
* Hepoxilin B3
* Hydrogen peroxide
* Icilin
* Isothiocyanate
* Ligustilide (celery, Angelica acutiloba)
* Linalool (Sichuan pepper, thyme)
* Methylglyoxal
* Methyl salicylate (wintergreen)
* N-Methylmaleimide
* Nicotine (tobacco)
* Oleocanthal (olive oil)
* Paclitaxel (Pacific yew)
* Paracetamol (acetaminophen)
* PF-4840154
* Phenacyl chloride
* Polygodial (Dorrigo pepper)
* Shogaols (ginger, Sichuan and melegueta peppers)
* Tear gases
* Tetrahydrocannabinol (cannabis)
* Thiopropanal S-oxide (onion)
* Umbellulone (Umbellularia californica)
* WIN 55,212-2

|

Blockers|

* Dehydroligustilide (celery)
* Nicotine (tobacco)
* Ruthenium red

TRPC|

| Activators|

* Adhyperforin (St John's wort)
* Diacyl glycerol
* GSK1702934A
* Hyperforin (St John's wort)
* Substance P

|

Blockers|

* DCDPC
* DHEA-S
* Flufenamic acid
* GSK417651A
* GSK2293017A
* Meclofenamic acid
* N-(p-Amylcinnamoyl)anthranilic acid
* Niflumic acid
* Pregnenolone sulfate
* Progesterone
* Pyr3
* Tolfenamic acid

TRPM|

| Activators|

* ADP-ribose
* BCTC
* Calcium (intracellular)
* Cold
* Coolact P
* Cooling Agent 10
* CPS-369
* Eucalyptol (eucalyptus)
* Frescolat MGA
* Frescolat ML
* Geraniol
* Hydroxycitronellal
* Icilin
* Linalool
* Menthol (mint)
* PMD 38
* Pregnenolone sulfate
* Rutamarin (Ruta graveolens)
* Steviol glycosides (e.g., stevioside) (Stevia rebaudiana)
* Sweet tastants (e.g., glucose, fructose, sucrose; indirectly)
* Thio-BCTC
* WS-3
* WS-12
* WS-23

|

Blockers|

* Capsazepine
* Clotrimazole
* DCDPC
* Elismetrep
* Flufenamic acid
* Meclofenamic acid
* Mefenamic acid
* N-(p-Amylcinnamoyl)anthranilic acid
* Nicotine (tobacco)
* Niflumic acid
* Ruthenium red
* Rutamarin (Ruta graveolens)
* Tolfenamic acid
* TPPO

TRPML|

| Activators|

* MK6-83
* PI(3,5)P2
* SF-22

|

TRPP|

| Activators|

* Triptolide (Tripterygium wilfordii)

|

Blockers|

* Ruthenium red

TRPV|

| Activators|

* 2-APB
* 5',6'-EET
* 9-HODE
* 9-oxoODE
* 12S-HETE
* 12S-HpETE
* 13-HODE
* 13-oxoODE
* 20-HETE
* α-Sanshool (ginger, Sichuan and melegueta peppers)
* Allicin (garlic)
* AM404
* Anandamide
* Bisandrographolide (Andrographis paniculata)
* Camphor (camphor laurel, rosemary, camphorweed, African blue basil, camphor basil)<!--TRPV1 and TRPV3-->
* Cannabidiol (cannabis)
* Cannabidivarin (cannabis)
* Capsaicin (chili pepper)
* Carvacrol (oregano, thyme, pepperwort, wild bergamot, others)
* DHEA
* Diacyl glycerol
* Dihydrocapsaicin (chili pepper)
* Estradiol
* Eugenol (basil, clove)
* Evodiamine (Euodia ruticarpa)
* Gingerols (ginger)
* GSK1016790A
* Heat
* Hepoxilin A3
* Hepoxilin B3
* Homocapsaicin (chili pepper)
* Homodihydrocapsaicin (chili pepper)
* Incensole (incense)
* Lysophosphatidic acid
* Low pH (acidic conditions)
* Menthol (mint)
* N-Arachidonoyl dopamine
* N-Oleoyldopamine
* N-Oleoylethanolamide
* Nonivamide (PAVA) (PAVA spray)
* Nordihydrocapsaicin (chili pepper)
* Paclitaxel (Pacific yew)
* Paracetamol (acetaminophen)
* Phorbol esters (e.g., 4α-PDD)
* Piperine (black pepper, long pepper)
* Polygodial (Dorrigo pepper)
* Probenecid
* Protons
* RhTx
* Rutamarin (Ruta graveolens)
* Resiniferatoxin (RTX) (Euphorbia resinifera/pooissonii)
* Shogaols (ginger, Sichuan and melegueta peppers)
* Tetrahydrocannabivarin (cannabis)
* Thymol (thyme, oregano)
* Tinyatoxin (Euphorbia resinifera/pooissonii)
* Tramadol
* Vanillin (vanilla)
* Zucapsaicin

|

Blockers|

* α-Spinasterol (Vernonia tweediana)
* AMG-517
* Asivatrep
* BCTC
* Cannabigerol (cannabis)
* Cannabigerolic acid (cannabis)
* Cannabigerovarin (cannabis)
* Cannabinol (cannabis)
* Capsazepine
* DCDPC
* DHEA
* DHEA-S
* Flufenamic acid
* GRC-6211
* HC-067047
* Lanthanum
* Mavatrep
* Meclofenamic acid
* N-(p-Amylcinnamoyl)anthranilic acid
* NGD-8243
* Niflumic acid
* Pregnenolone sulfate
* RN-1734
* RN-9893
* Ruthenium red
* SB-705498
* Tivanisiran
* Tolfenamic acid

See also: Receptor/signaling modulators • Ion channel modulators

* v
* t
* e

Xenobiotic-sensing receptor modulators

CAR|

* Agonists: 6,7-Dimethylesculetin
* Amiodarone
* Artemisinin
* Benfuracarb
* Carbamazepine
* Carvedilol
* Chlorpromazine
* Chrysin
* CITCO
* Clotrimazole
* Cyclophosphamide
* Cypermethrin
* DHEA (prasterone)
* Efavirenz
* Ellagic acid
* Griseofulvin
* Methoxychlor
* Mifepristone
* Nefazodone
* Nevirapine
* Nicardipine
* Octicizer
* Permethrin
* Phenobarbital
* Phenytoin
* Pregnanedione (5β-dihydroprogesterone)
* Reserpine
* TCPOBOP
* Telmisartan
* Tolnaftate
* Troglitazone
* Valproic acid

* Antagonists: 3,17β-Estradiol
* 3α-Androstanol
* 3α-Androstenol
* 3β-Androstanol
* 17-Androstanol
* AITC
* Ethinylestradiol
* Meclizine
* Nigramide J
* Okadaic acid
* PK-11195
* S-07662
* T-0901317

PXR|

* Agonists: 17α-Hydroxypregnenolone
* 17α-Hydroxyprogesterone
* Δ4-Androstenedione
* Δ5-Androstenediol
* Δ5-Androstenedione
* AA-861
* Allopregnanediol
* Allopregnanedione (5α-dihydroprogesterone)
* Allopregnanolone (brexanolone)
* Alpha-Lipoic acid
* Ambrisentan
* AMI-193
* Amlodipine besylate
* Antimycotics
* Artemisinin
* Aurothioglucose
* Bile acids
* Bithionol
* Bosentan
* Bumecaine
* Cafestol
* Cephaloridine
* Cephradine
* Chlorpromazine
* Ciglitazone
* Clindamycin
* Clofenvinfos
* Chloroxine
* Clotrimazole
* Colforsin
* Corticosterone
* Cyclophosphamide
* Cyproterone acetate
* Demecolcine
* Dexamethasone
* DHEA (prasterone)
* DHEA-S (prasterone sulfate)
* Dibunate sodium
* Diclazuril
* Dicloxacillin
* Dimercaprol
* Dinaline
* Docetaxel
* Docusate calcium
* Dodecylbenzenesulfonic acid
* Dronabinol
* Droxidopa
* Eburnamonine
* Ecopipam
* Enzacamene
* Epothilone B
* Erythromycin
* Famprofazone
* Febantel
* Felodipine
* Fenbendazole
* Fentanyl
* Flucloxacillin
* Fluorometholone
* Griseofulvin
* Guggulsterone
* Haloprogin
* Hetacillin potassium
* Hyperforin
* Hypericum perforatum (St John's wort)
* Indinavir sulfate
* Lasalocid sodium
* Levothyroxine
* Linolenic acid
* LOE-908
* Loratadine
* Lovastatin
* Meclizine
* Metacycline
* Methylprednisolone
* Metyrapone
* Mevastatin
* Mifepristone
* Nafcillin
* Nicardipine
* Nicotine
* Nifedipine
* Nilvadipine
* Nisoldipine
* Norelgestromin
* Omeprazole
* Orlistat
* Oxatomide
* Paclitaxel
* Phenobarbital
* Piperine
* Plicamycin
* Prednisolone
* Pregnanediol
* Pregnanedione (5β-dihydroprogesterone)
* Pregnanolone
* Pregnenolone
* Pregnenolone 16α-carbonitrile
* Proadifen
* Progesterone
* Quingestrone
* Reserpine
* Reverse triiodothyronine
* Rifampicin
* Rifaximin
* Rimexolone
* Riodipine
* Ritonavir
* Simvastatin
* Sirolimus
* Spironolactone
* Spiroxatrine
* SR-12813
* Suberoylanilide
* Sulfisoxazole
* Suramin
* Tacrolimus
* Tenylidone
* Terconazole
* Testosterone isocaproate
* Tetracycline
* Thiamylal sodium
* Thiothixene
* Thonzonium bromide
* Tianeptine
* Troglitazone
* Troleandomycin
* Tropanyl 3,5-dimethulbenzoate
* Zafirlukast
* Zeranol

* Antagonists: Ketoconazole
* Sesamin

See also
Receptor/signaling modulators
Nuclear receptor modulators

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*[CID]: Compound ID
*[v]: View this template
*[t]: Discuss this template
*[e]: Edit this template
*[TRP]: Transient receptor potential
*[TRPA]: Transient receptor potential ankyrin channel
*[TRPC]: Transient receptor potential canonical channel
*[TRPM]: Transient receptor potential melastatin channel
*[TRPML]: Transient receptor potential mucolipin channel
*[TRPP]: Transient receptor potential polycystin channel
*[TRPV]: Transient receptor potential vanilloid channel
*[CAR]: Constitutive androstane receptor
*[PXR]: Pregnane X receptor