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Details

Stereochemistry ACHIRAL
Molecular Formula C17H14N2O5S
Molecular Weight 358.368
Optical Activity NONE
Defined Stereocenters 0 / 0
E/Z Centers 1
Charge 0

SHOW SMILES / InChI
Structure of Acid red 4 free acid

SMILES

COC1=C(C=CC=C1)\N=N\C2=C(O)C3=C(C=CC=C3)C(=C2)S(O)(=O)=O

InChI

InChIKey=JRLHFEXLBNGRJO-VHEBQXMUSA-N
InChI=1S/C17H14N2O5S/c1-24-15-9-5-4-8-13(15)18-19-14-10-16(25(21,22)23)11-6-2-3-7-12(11)17(14)20/h2-10,20H,1H3,(H,21,22,23)/b19-18+

HIDE SMILES / InChI

Approval Year

Name Type Language
Acid red 4 free acid
Common Name English
1-Naphthalenesulfonic acid, 4-hydroxy-3-[2-(2-methoxyphenyl)diazenyl]-
Preferred Name English
4-Hydroxy-3-[2-(2-methoxyphenyl)diazenyl]-1-naphthalenesulfonic acid
Systematic Name English
Code System Code Type Description
FDA UNII
XXR35M8AGD
Created by admin on Wed Apr 02 20:30:18 GMT 2025 , Edited by admin on Wed Apr 02 20:30:18 GMT 2025
PRIMARY
PUBCHEM
22137
Created by admin on Wed Apr 02 20:30:18 GMT 2025 , Edited by admin on Wed Apr 02 20:30:18 GMT 2025
PRIMARY
CAS
22036-97-1
Created by admin on Wed Apr 02 20:30:18 GMT 2025 , Edited by admin on Wed Apr 02 20:30:18 GMT 2025
PRIMARY