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Substance Name: FD&C Red No. 4 free acid
RN: 14918-59-3
UNII: WJE3T5596E
InChIKey: DZCOAQKTFAIFRV-FMQUCBEESA-N

Molecular Formula

  • C18-H16-N2-O7-S2

Molecular Weight

  • 436.4634
 
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Names and Synonyms

Name of Substance

  • FD&C Red No. 4 free acid

Synonyms

  • 1-Naphthalenesulfonic acid, 3-((2,4-dimethyl-5-sulfophenyl)azo)-4-hydroxy-
  • 1-Naphthalenesulfonic acid, 3-(2-(2,4-dimethyl-5-sulfophenyl)diazenyl)-4-hydroxy-
  • 3-(2-(2,4-Dimethyl-5-sulfophenyl)diazenyl)-4-hydroxy-1-naphthalenesulfonic acid
  • C.i. food Red 1 (free acid)
  • FD&C Red No. 4 free acid
  • Food Red 1 free acid
  • UNII-WJE3T5596E

Registry Numbers

CAS Registry Number

  • 14918-59-3

FDA UNII

  • WJE3T5596E

System Generated Number

  • 0014918593

Structure Descriptors

InChI

1S/C18H16N2O7S2/c1-10-7-11(2)16(28(22,23)24)8-14(10)19-20-15-9-17(29(25,26)27)12-5-3-4-6-13(12)18(15)21/h3-9,21H,1-2H3,(H,22,23,24)(H,25,26,27)/b20-19+

InChIKey

DZCOAQKTFAIFRV-FMQUCBEESA-N

Smiles

Cc1cc(C)c(cc1N=Nc2cc(c3ccccc3c2O)S(=O)(=O)O)S(=O)(=O)O