U.S. Department of Health & Human Services Divider Arrow National Institutes of Health Divider Arrow NCATS

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

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
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