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Details

Stereochemistry ACHIRAL
Molecular Formula C16H12N2O4S
Molecular Weight 328.342
Optical Activity NONE
Defined Stereocenters 0 / 0
E/Z Centers 1
Charge 0

SHOW SMILES / InChI
Structure of ACID ORANGE 20 FREE ACID

SMILES

OC1=C2C=CC=CC2=C(C=C1)\N=N\C3=CC=C(C=C3)S(O)(=O)=O

InChI

InChIKey=PURJGKXXWJKIQR-ISLYRVAYSA-N
InChI=1S/C16H12N2O4S/c19-16-10-9-15(13-3-1-2-4-14(13)16)18-17-11-5-7-12(8-6-11)23(20,21)22/h1-10,19H,(H,20,21,22)/b18-17+

HIDE SMILES / InChI

Molecular Formula C16H12N2O4S
Molecular Weight 328.342
Charge 0
Count
Stereochemistry ACHIRAL
Additional Stereochemistry No
Defined Stereocenters 0 / 0
E/Z Centers 1
Optical Activity NONE

Acid Orange 20 is an azodye. Used for wool, silk fiber dyeing, etc. Also used in leather dyeing and indicator.

Approval Year

Substance Class Chemical
Created
by admin
on Tue Apr 01 16:30:54 GMT 2025
Edited
by admin
on Tue Apr 01 16:30:54 GMT 2025
Record UNII
J63QP1Z3JT
Record Status Validated (UNII)
Record Version
  • Download
Name Type Language
ACID ORANGE 20 (FREE ACID)
Preferred Name English
ACID ORANGE 20 FREE ACID
Common Name English
C.I. ACID ORANGE 20 (FREE ACID)
Common Name English
BENZENESULFONIC ACID, 4-(2-(4-HYDROXY-1-NAPHTHALENYL)
Systematic Name English
Code System Code Type Description
EPA CompTox
DTXSID5060356
Created by admin on Tue Apr 01 16:30:54 GMT 2025 , Edited by admin on Tue Apr 01 16:30:54 GMT 2025
PRIMARY
FDA UNII
J63QP1Z3JT
Created by admin on Tue Apr 01 16:30:54 GMT 2025 , Edited by admin on Tue Apr 01 16:30:54 GMT 2025
PRIMARY
CAS
574-69-6
Created by admin on Tue Apr 01 16:30:54 GMT 2025 , Edited by admin on Tue Apr 01 16:30:54 GMT 2025
PRIMARY
Related Record Type Details
SALT/SOLVATE -> PARENT