C.I. ACID RED 137

Details

Stereochemistry	ACHIRAL
Molecular Formula	C20H17N4O6S.Na
Molecular Weight	464.427
Optical Activity	NONE
Defined Stereocenters	0 / 0
E/Z Centers	1
Charge	0

SHOW SMILES / InChI

Structure Search

SMILES

[Na+].CC(=O)NC1=CC=C(C=C1)\N=N\C2=C(O)C3=C(C=C(NC(C)=O)C=C3)C=C2S([O-])(=O)=O

InChI

InChIKey=MSZHEEJTTAUDJC-XMXXDQCKSA-M

InChI=1S/C20H18N4O6S.Na/c1-11(25)21-14-3-5-15(6-4-14)23-24-19-18(31(28,29)30)10-13-9-16(22-12(2)26)7-8-17(13)20(19)27;/h3-10,27H,1-2H3,(H,21,25)(H,22,26)(H,28,29,30);/q;+1/p-1/b24-23+;

HIDE SMILES / InChI

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

Molecular Formula	C20H17N4O6S
Molecular Weight	441.437
Charge	-1
Count

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

Approval Year

Substance Class	Chemical Created by `admin` on `Mon Mar 31 19:30:08 GMT 2025` Edited by `admin` on `Mon Mar 31 19:30:08 GMT 2025`
Record UNII	X5F74RHC4G
Record Status	`Validated (UNII)`
Record Version

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Name

Type

Language

NSC-75906

Preferred Name

English

C.I. ACID RED 137

Common Name

English

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

Systematic Name

English

C.I. ACID RED 137, MONOSODIUM SALT

Common Name

English

CALCOCID SCARLET Y

Common Name

English

BLACKLEY FAST SCARLET N

Common Name

English

C.I. 17755

Common Name

English

CI ACID RED 137, MONOSODIUM SALT

Common Name

English

CI 17755

Common Name

English

AZO SCARLET Y

Common Name

English

2-Naphthalenesulfonic acid, 7-(acetylamino)-3-[2-[4-(acetylamino)phenyl]diazenyl]-4-hydroxy-, sodium salt

Common Name

English

2-Naphthalenesulfonic acid, 7-(acetylamino)-3-[[4-(acetylamino)phenyl]azo]-4-hydroxy-, monosodium salt

Systematic Name

English

CI ACID RED 137

Common Name

English

BRILLIANT CROCEIN FL

Common Name

English

ATUL PAPER SCARLET A

Common Name

English

BLACKLEY FAST PAPER SCARLET N

Common Name

English

Code System Code Type Description

FDA UNII

X5F74RHC4G