Pigment Red 57

CAS Registry Number®

5858-81-1

CAS Name

Pigment Red 57

Molecular Formula

C18H14N2O6S.2Na

Cite this Page

Pigment Red 57.   CAS Common Chemistry.   CAS, a division of the American Chemical Society, n.d.   http://commonchemistry.cas.org/detail?cas_rn=5858-81-1 (retrieved 2024-11-24) (CAS RN: 5858-81-1).  Licensed under the Attribution-Noncommercial 4.0 International License (CC BY-NC 4.0).

Other Names and Identifiers

InChI

InChI=1S/C18H14N2O6S.2Na/c1-10-6-7-14(15(8-10)27(24,25)26)19-20-16-12-5-3-2-4-11(12)9-13(17(16)21)18(22)23;;/h2-9,21H,1H3,(H,22,23)(H,24,25,26);;

InChIKey

InChIKey=JWLLQBRJUSHJFJ-UHFFFAOYSA-N

SMILES

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

Canonical SMILES

[Na].O=C(O)C1=CC=2C=CC=CC2C(N=NC3=CC=C(C=C3S(=O)(=O)O)C)=C1O

Other Names for this Substance

  • 2-Naphthalenecarboxylic acid, 3-hydroxy-4-[2-(4-methyl-2-sulfophenyl)diazenyl]-, sodium salt (1:2)
  • C.I. Pigment Red 57, disodium salt
  • C.I. Pigment Red 57
  • 2-Naphthalenecarboxylic acid, 3-hydroxy-4-[(4-methyl-2-sulfophenyl)azo]-, disodium salt
  • 11070 Red

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Deleted or Replaced CAS Registry Numbers

39473-11-5, 72432-82-7, 83711-69-7

CAS INSIGHTSTM
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