FD&C Red No. 1

CAS Registry Number®

3564-09-8

CAS Name

FD&C Red No. 1

Molecular Formula

C19H18N2O7S2.2Na

Cite this Page

FD&C Red No. 1.   CAS Common Chemistry.   CAS, a division of the American Chemical Society, n.d.   http://commonchemistry.cas.org/detail?cas_rn=3564-09-8 (retrieved 2024-11-22) (CAS RN: 3564-09-8).  Licensed under the Attribution-Noncommercial 4.0 International License (CC BY-NC 4.0).

Other Names and Identifiers

InChI

InChI=1S/C19H18N2O7S2.2Na/c1-10-6-12(3)16(7-11(10)2)20-21-18-15-5-4-14(29(23,24)25)8-13(15)9-17(19(18)22)30(26,27)28;;/h4-9,22H,1-3H3,(H,23,24,25)(H,26,27,28);;

InChIKey

InChIKey=ZENTVOADTFFCSR-UHFFFAOYSA-N

SMILES

N(=NC1=C(C)C=C(C)C(C)=C1)C=2C3=C(C=C(S(=O)(=O)O)C2O)C=C(S(=O)(=O)O)C=C3.[Na]

Canonical SMILES

[Na].O=S(=O)(O)C1=CC=C2C(=C1)C=C(C(O)=C2N=NC=3C=C(C(=CC3C)C)C)S(=O)(=O)O

Other Names for this Substance

  • 2,7-Naphthalenedisulfonic acid, 3-hydroxy-4-[2-(2,4,5-trimethylphenyl)diazenyl]-, sodium salt (1:2)
  • Ponceau 3R
  • 2,7-Naphthalenedisulfonic acid, 3-hydroxy-4-[(2,4,5-trimethylphenyl)azo]-, disodium salt
  • Dolkwal Ponceau 3R
  • FD and C Red No. 1

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Deleted or Replaced CAS Registry Numbers

1342-07-0, 8024-49-5

CAS INSIGHTSTM
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