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Details

Stereochemistry ACHIRAL
Molecular Formula C20H14N2O5S
Molecular Weight 394.401
Optical Activity NONE
Defined Stereocenters 0 / 0
E/Z Centers 1
Charge 0

SHOW SMILES / InChI
Structure of Calcon free acid

SMILES

OC1=C(\N=N\C2=C(O)C=C(C3=CC=CC=C23)S(O)(=O)=O)C4=C(C=CC=C4)C=C1

InChI

InChIKey=ZMLWOOMWRCRLCH-QURGRASLSA-N
InChI=1S/C20H14N2O5S/c23-16-10-9-12-5-1-2-6-13(12)19(16)21-22-20-15-8-4-3-7-14(15)18(11-17(20)24)28(25,26)27/h1-11,23-24H,(H,25,26,27)/b22-21+

HIDE SMILES / InChI

Approval Year

Name Type Language
1-Naphthalenesulfonic acid, 3-hydroxy-4-[2-(2-hydroxy-1-naphthalenyl)diazenyl]-
Preferred Name English
Calcon free acid
Common Name English
3-Hydroxy-4-[2-(2-hydroxy-1-naphthalenyl)diazenyl]-1-naphthalenesulfonic acid
Systematic Name English
Code System Code Type Description
CAS
2538-79-6
Created by admin on Wed Apr 02 19:11:47 GMT 2025 , Edited by admin on Wed Apr 02 19:11:47 GMT 2025
PRIMARY
FDA UNII
RHR78QL7QM
Created by admin on Wed Apr 02 19:11:47 GMT 2025 , Edited by admin on Wed Apr 02 19:11:47 GMT 2025
PRIMARY
PUBCHEM
17341
Created by admin on Wed Apr 02 19:11:47 GMT 2025 , Edited by admin on Wed Apr 02 19:11:47 GMT 2025
PRIMARY