Naphthol AS

Names
Preferred IUPAC name

3-Hydroxy-N-phenylnaphthalene-2-carboxamide

Other names

Naphtol AS, 3-hydroxy-2-naphthanilide, β-Hydroxynaphthoic anilide

Identifiers

CAS Number

* 92-77-3

3D model (JSmol)

* Interactive image

ChemSpider |

* 60085

ECHA InfoCard | 100.001.990
EC Number |

* 202-188-1

PubChem CID

* 66719

UNII |

* V3ZU6E76NB

CompTox Dashboard (EPA)

* DTXSID1052618

InChI

* InChI=1S/C17H13NO2/c19-16-11-13-7-5-4-6-12(13)10-15(16)17(20)18-14-8-2-1-3-9-14/h1-11,19H,(H,18,20)

Key: JFGQHAHJWJBOPD-UHFFFAOYSA-N

SMILES

* C1=CC=C(C=C1)NC(=O)C2=CC3=CC=CC=C3C=C2O

Properties

Chemical formula

| C17H13NO2
Molar mass | 263.296 g·mol−1
Hazards
GHS labelling:

Pictograms

Signal word

| Warning

Hazard statements

| H302, H315, H317, H319, H332, H335, H411

Precautionary statements

| P261, P264, P270, P271, P272, P273, P280, P301+P312, P302+P352, P304+P312, P304+P340, P305+P351+P338, P312, P321, P330, P332+P313, P333+P313, P337+P313, P362, P363, P391, P403+P233, P405, P501

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

Infobox references

Chemical compound

Naphthol AS is an organic compound with the formula C10H6(OH)C(O)NHC6H5. It is the anilide of 3-hydroxy-2-carboxynaphthalene. Many analogous compounds are known, designated with a differing suffix. For example, in Naphthol AS-OL, the aryl substituent on nitrogen is C6H4-2-OCH3. These compounds are used as coupling partners in the preparation of some azo dyes.[1]

## History[edit]

In 1911, it was found to be a good precursor to dyes for wool by chemists at K. Oehler Anilin- und Anilinfarbenfabrik Offenbach.[2][3]

## References[edit]

1. ^ K. Hunger; W. Herbst (2012). "Pigments, Organic". Ullmann's Encyclopedia of Industrial Chemistry. Weinheim: Wiley-VCH. doi:10.1002/14356007.a20_371. ISBN 978-3527306732.
2. ^ Willy Herbst, Klaus Hunger (2009). Industrielle Organische Pigmente Herstellung, Eigenschaften, Anwendung (3. ed.). Wiley VCH. p. 201\. ISBN 978-3-527-62496-6.
3. ^ US 0

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* v
* t
* e

*[CID]: Compound ID
*[EPA]: U.S. Environmental Protection Agency
*[H302]: H302: Harmful if swallowed
*[H315]: H315: Causes skin irritation
*[H317]: H317: May cause an allergic skin reaction
*[H319]: H319: Causes serious eye irritation
*[H332]: H332: Harmful if inhaled
*[H335]: H335: May cause respiratory irritation
*[H411]: H411: Toxic to aquatic life with long lasting effects
*[P261]: P261: Avoid breathing dust/fume/gas/mist/vapours/spray.
*[P264]: P264: Wash ... thoroughly after handling.
*[P270]: P270: Do not eat, drink or smoke when using this product.
*[P271]: P271: Use only outdoors or in a well-ventilated area.
*[P272]: P272: Contaminated work clothing should not be allowed out of the workplace.
*[P273]: P273: Avoid release to the environment.
*[P280]: P280: Wear protective gloves/protective clothing/eye protection/face protection.
*[P301+P312]: P301+P312: IF SWALLOWED: Call a POISON CENTER or doctor/physician if you feel unwell.
*[P302+P352]: P302+P352: IF ON SKIN: Wash with soap and water.
*[P304+P312]: P304+P312: IF INHALED: Call a POISON CENTER or doctor/physician if you feel unwell.
*[P304+P340]: P304+P340: IF INHALED: Remove victim to fresh air and keep at rest in a position comfortable for breathing.
*[P305+P351+P338]: P305+P351+P338: IF IN EYES: Rinse continuously with water for several minutes. Remove contact lenses if present and easy to do. Continue rinsing.
*[P312]: P312: Call a POISON CENTER or doctor/physician if you feel unwell.
*[P321]: P321: Specific treatment (see ... on this label).
*[P330]: P330: Rinse mouth.
*[P332+P313]: P332+P313: If skin irritation occurs: Get medical advice/attention.
*[P333+P313]: P333+P313: If skin irritation or a rash occurs: Get medical advice/attention.
*[P337+P313]: P337+P313: If eye irritation persists: Get medical advice/attention.
*[P362]: P362: Take off contaminated clothing.
*[P363]: P363: Wash contaminated clothing before reuse.
*[P391]: P391: Collect spillage.
*[P403+P233]: P403+P233: Store in a well ventilated place. Keep container tightly closed.
*[P405]: P405: Store locked up.
*[P501]: P501: Dispose of contents/container to ...
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