Eriochrome Black A

Details

Stereochemistry	ACHIRAL
Molecular Formula	C20H12N3O7S.Na
Molecular Weight	461.38
Optical Activity	NONE
Defined Stereocenters	0 / 0
E/Z Centers	1
Charge	0

SHOW SMILES / InChI

Structure Search

SMILES

[Na+].OC1=CC=C2C=CC=CC2=C1\N=N\C3=C4C=CC(=CC4=C(C=C3O)S([O-])(=O)=O)[N+]([O-])=O

InChI

InChIKey=DXRWYIKGBIPGAG-QUABFQRHSA-M

InChI=1S/C20H13N3O7S.Na/c24-16-8-5-11-3-1-2-4-13(11)19(16)21-22-20-14-7-6-12(23(26)27)9-15(14)18(10-17(20)25)31(28,29)30;/h1-10,24-25H,(H,28,29,30);/q;+1/p-1/b22-21+;

HIDE SMILES / InChI

Molecular Formula	C20H12N3O7S
Molecular Weight	438.39
Charge	-1
Count

Stereochemistry	ACHIRAL
Additional Stereochemistry	No
Defined Stereocenters	0 / 0
E/Z Centers	1
Optical Activity	NONE

Molecular Formula	Na
Molecular Weight	22.98976928
Charge	1
Count

Stereochemistry	ACHIRAL
Additional Stereochemistry	No
Defined Stereocenters	0 / 0
E/Z Centers	0
Optical Activity	NONE

Approval Year

Substance Class	Chemical Created by `admin` on `Wed Apr 02 11:28:09 GMT 2025` Edited by `admin` on `Wed Apr 02 11:28:09 GMT 2025`
Record UNII	RZR3KN57TW
Record Status	`Validated (UNII)`
Record Version

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Name

Type

Language

NSC-73413

Preferred Name

English

Eriochrome Black A

Common Name

English

C.I. 15710

Common Name

English

Acid Chrome Black N

Common Name

English

Sodium 3-hydroxy-4-((2-hydroxynaphthalen-1-yl)diazenyl)-7-nitronaphthalene-1-sulfonate

Systematic Name

English

C.I. Mordant Black 1

Common Name

English

Acid Chrome Black S

Common Name

English

1-Naphthalenesulfonic acid, 3-hydroxy-4-[2-(2-hydroxy-1-naphthalenyl)diazenyl]-7-nitro-, sodium salt (1:1)

Common Name

English

Solochrome Black AS

Common Name

English

1-Naphthalenesulfonic acid, 3-hydroxy-4-[(2-hydroxy-1-naphthalenyl)azo]-7-nitro-, monosodium salt

Common Name

English

Code System Code Type Description

CAS

3618-58-4