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1,2-Naphthoxydiazo-4-sulfonic acid

BGC Id:	772375450214
CAS No:	887-76-3
Synonyms:	4,4'-azo-3-hydroxynaphthalene-1-sulphonate ; 1,2-naphthoxydiazde-4-sulfonicacid ; 1,2-naphthoxydiazo-4-sulfonic acid ; 1-diazo-2-naphthol-4 ; 4-diazonio-3-hydroxynaphthalene-1-sulfonate ; 4,4'-azo-3-hydroxynaphthalene-1-sulfonate ; 1 diazo-2-naphthol-4-sulphonic acid ; 1,2-diazoxynaphthalene-4-sulfnic acid ; 1-diazo-2-naphthol-4-sulfonic acid powder ; 1-diazo-2-naphthol-4-sulfonic acid
Molecular Formula:	C10H6N2O4S
Molecular Weight:	252.25
EINECS:	212-958-9

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The following notable provider has been checked and can be recommended.

Dayang Chem (Hangzhou) Co.,Ltd.

Company type: Leading producer

Phone: +86-571-88938639
Telefax: +86-571-8893-8652
Country: P.R.China

Hangzhou DayangChem Co. Ltd is a comprehensive entity which specializes in development, production and trade of pharmaceutical, agrochemical and dyestuff intermediates as well as some special type reagents. We have an own factory and share enterprises. Dayang Chem (Hangzhou) Co.,Ltd. is a seller of Phenacyltriphenylphosphonium bromide. We act also as agent of many chemical factories and promote their products to the international m ...

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The last intensive check and update was carried out on 2026/03/01.

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Synonyms:

4,4'-azo-3-hydroxynaphthalene-1-sulphonate ; 1,2-naphthoxydiazde-4-sulfonicacid ; 1,2-naphthoxydiazo-4-sulfonic acid ; 1-diazo-2-naphthol-4 ; 4-diazonio-3-hydroxynaphthalene-1-sulfonate ; 4,4'-azo-3-hydroxynaphthalene-1-sulfonate ; 1 diazo-2-naphthol-4-sulphonic acid ; 1,2-diazoxynaphthalene-4-sulfnic acid ; 1-diazo-2-naphthol-4-sulfonic acid powder ; 1-diazo-2-naphthol-4-sulfonic acid

CAS:

887-76-3

EINECS:

212-958-9

Molecular Formula:

C10H6N2O4S

MDL:

MFCD00012409

Properties

Molecular Weight:

252.25 g·mol−1

Melting point:

160 °C (dec.)(lit.)

Boiling point:

160 C

Safety Information

Hazard Symbols: F, C

Europe standard Hazard pictograms, code and definition

Hazard Classes:

4.1

Hazardous Substances Data:

Non-Regulated Material ¹

Risk Codes:

5-11-34 (R)

Safety Codes:

16-26-36/37/39-45-48 (S)

WGK Germany:

RID / ADR:

UN 2925 4.1 / PG 2

Storage temperature:

Flammables area

What other providers are available for CAS 887-76-3?

In addition to the providers presented here for 1,2-Naphthoxydiazo-4-sulfonic acid with the CAS number 887-76-3, there are other 29 providers with slightly different product names available for this CAS number.

1-Diazo-2-naphthol-4-sulfonic acid

4-Diazo-3,4-dihydro-3-oxo-1-naphthalenesulfonic acid

+2 additional providers that we know from the past