C.I. Food Red 1

CAS Registry Number®

4548-53-2

CAS Name

C.I. Food Red 1

Molecular Formula

C18H16N2O7S2.2Na

Cite this Page

C.I. Food Red 1.   CAS Common Chemistry.   CAS, a division of the American Chemical Society, n.d.   http://commonchemistry.cas.org/detail?cas_rn=4548-53-2 (retrieved 2024-11-22) (CAS RN: 4548-53-2).  Licensed under the Attribution-Noncommercial 4.0 International License (CC BY-NC 4.0).

Other Names and Identifiers

InChI

InChI=1S/C18H16N2O7S2.2Na/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);;

InChIKey

InChIKey=CVHMSLNQIHUXMT-UHFFFAOYSA-N

SMILES

S(=O)(=O)(O)C=1C2=C(C(O)=C(N=NC3=CC(S(=O)(=O)O)=C(C)C=C3C)C1)C=CC=C2.[Na]

Canonical SMILES

[Na].O=S(=O)(O)C1=CC(N=NC=2C=C(C(=CC2C)C)S(=O)(=O)O)=C(O)C=3C=CC=CC31

Other Names for this Substance

  • 1-Naphthalenesulfonic acid, 3-[2-(2,4-dimethyl-5-sulfophenyl)diazenyl]-4-hydroxy-, sodium salt (1:2)
  • C.I. Food Red 1
  • Ponceau SX
  • C.I. Food Red 1, disodium salt
  • 1-Naphthalenesulfonic acid, 3-[(2,4-dimethyl-5-sulfophenyl)azo]-4-hydroxy-, disodium salt

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