C.I. Food Red 17

CAS Registry Number®

25956-17-6

CAS Name

C.I. Food Red 17

Molecular Formula

C18H16N2O8S2.2Na

Molecular Mass

498.44

Cite this Page

C.I. Food Red 17.   CAS Common Chemistry.   CAS, a division of the American Chemical Society, n.d.   http://commonchemistry.cas.org/detail?cas_rn=25956-17-6 (retrieved 2025-03-28) (CAS RN: 25956-17-6).  Licensed under the Attribution-Noncommercial 4.0 International License (CC BY-NC 4.0).

Other Names and Identifiers

InChI

InChI=1S/C18H16N2O8S2.2Na/c1-10-7-14(16(28-2)9-17(10)30(25,26)27)19-20-18-13-5-4-12(29(22,23)24)8-11(13)3-6-15(18)21;;/h3-9,21H,1-2H3,(H,22,23,24)(H,25,26,27);;

InChIKey

InChIKey=YWVRKKBYWHKAAQ-UHFFFAOYSA-N

SMILES

N(=NC1=C(OC)C=C(S(=O)(=O)O)C(C)=C1)C=2C3=C(C=C(S(=O)(=O)O)C=C3)C=CC2O.[Na]

Canonical SMILES

[Na].O=S(=O)(O)C1=CC=C2C(C=CC(O)=C2N=NC=3C=C(C(=CC3OC)S(=O)(=O)O)C)=C1

Other Names for this Substance

  • 2-Naphthalenesulfonic acid, 6-hydroxy-5-[2-(2-methoxy-5-methyl-4-sulfophenyl)diazenyl]-, sodium salt (1:2)
  • 2-Naphthalenesulfonic acid, 6-hydroxy-5-[(2-methoxy-5-methyl-4-sulfophenyl)azo]-, disodium salt
  • 2-Naphthalenesulfonic acid, 6-hydroxy-5-[(6-methoxy-4-sulfo-m-tolyl)azo]-, disodium salt
  • Allura Red AC
  • FD and C Red No. 40

View All

Deleted or Replaced CAS Registry Numbers

64553-31-7, 66813-73-8, 84069-24-9

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