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Details

Stereochemistry ACHIRAL
Molecular Formula C20H14N2O10S3
Molecular Weight 538.528
Optical Activity NONE
Defined Stereocenters 0 / 0
E/Z Centers 1
Charge 0

SHOW SMILES / InChI
Structure of PONCEAU 4R FREE ACID

SMILES

OC1=CC=C2C=C(C=C(C2=C1\N=N\C3=CC=C(C4=CC=CC=C34)S(O)(=O)=O)S(O)(=O)=O)S(O)(=O)=O

InChI

InChIKey=JZGWEIPJUAIDHM-QURGRASLSA-N
InChI=1S/C20H14N2O10S3/c23-16-7-5-11-9-12(33(24,25)26)10-18(35(30,31)32)19(11)20(16)22-21-15-6-8-17(34(27,28)29)14-4-2-1-3-13(14)15/h1-10,23H,(H,24,25,26)(H,27,28,29)(H,30,31,32)/b22-21+

HIDE SMILES / InChI

Molecular Formula C20H14N2O10S3
Molecular Weight 538.528
Charge 0
Count
Stereochemistry ACHIRAL
Additional Stereochemistry No
Defined Stereocenters 0 / 0
E/Z Centers 1
Optical Activity NONE

Approval Year

PubMed

PubMed

TitleDatePubMed
Effects of maternally exposed coloring food additives on receptor expressions related to learning and memory in rats.
2013-06
Hypersensitivity reactions to food colours with special reference to the natural colour annatto extract (butter colour).
1978
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
7VIW11169Y
Record Status Validated (UNII)
Record Version
  • Download
Name Type Language
PONCEAU 4R FREE ACID
Common Name English
C.I. ACID RED 18 (FREE ACID)
Preferred Name English
1,3-NAPHTHALENEDISULFONIC ACID, 7-HYDROXY-8-(2-(4-SULFO-1-NAPHTHALENYL)DIAZENYL)-
Systematic Name English
C.I. ACID RED 18 FREE ACID
Common Name English
7-HYDROXY-8-(4-SULFONAPHTHYLAZO)-1,3-NAPHTHALENEDISULFONIC ACID
Systematic Name English
7-HYDROXY-8-(2-(4-SULFO-1-NAPHTHALENYL)DIAZENYL)-1,3-NAPHTHALENEDISULFONIC ACID
Systematic Name English
Code System Code Type Description
CAS
7244-14-6
Created by admin on Mon Mar 31 19:30:08 GMT 2025 , Edited by admin on Mon Mar 31 19:30:08 GMT 2025
PRIMARY
ECHA (EC/EINECS)
230-648-1
Created by admin on Mon Mar 31 19:30:08 GMT 2025 , Edited by admin on Mon Mar 31 19:30:08 GMT 2025
PRIMARY
FDA UNII
7VIW11169Y
Created by admin on Mon Mar 31 19:30:08 GMT 2025 , Edited by admin on Mon Mar 31 19:30:08 GMT 2025
PRIMARY
EPA CompTox
DTXSID70859749
Created by admin on Mon Mar 31 19:30:08 GMT 2025 , Edited by admin on Mon Mar 31 19:30:08 GMT 2025
PRIMARY