Skip Navigation
ChemIDplus A TOXNET DATABASE LiteBrowseAdvanced

Substance Name: D & C Red no. 7
RN: 5281-04-9
UNII: ECW0LZ41X8
InChIKey: PZTQVMXMKVTIRC-RZLHGTIFSA-L

Molecular Formula

  • C18-H14-N2-O6-S.Ca

Molecular Weight

  • 424.445
 
* denotes mobile formatted website

Links to Resources


Search for this InChIKey on the Web

Names and Synonyms

Name of Substance

  • 2-Naphthalenecarboxylic acid, 3-hydroxy-4-((4-methyl-2-sulfophenyl)azo)-, calcium salt
  • 3-Hydroxy-4-((4-methyl-2-sulfophenyl)azo)-2-naphthalenecarboxylic acid, calcium salt
  • CI 15850:1 (Ca salt)
  • D & C Red No. 7
  • D&C Red No. 7
  • Lithol rubin B ca

Synonyms

  • 2-Naphthalenecarboxylic acid, 3-hydroxy-4-((4-methyl-2-sulfophenyl)azo)-, calcium salt (1:1)
  • 3-Hydroxy-4-((2-sulfo-p-tolyl)azo)-2-naphthalenecarboxylic acid, calcium salt (1:1)
  • 3-Hydroxy-4-((4-methyl-2-sulfophenyl)azo)-2-naphthalenecarboxylic acid, calcium salt
  • C.I. Pigment Red 57, calcium salt (1:1)
  • CCRIS 4903
  • D & C Red No. 7
  • D&C Red No. 7
  • EC 226-109-5
  • EINECS 226-109-5
  • UNII-ECW0LZ41X8

Systematic Names

  • 2-Naphthalenecarboxylic acid, 3-hydroxy-4-((4-methyl-2-sulfophenyl)azo)-, calcium salt (1:1)
  • 2-Naphthalenecarboxylic acid, 3-hydroxy-4-(2-(4-methyl-2-sulfophenyl)diazenyl)-, calcium salt (1:1)
  • C.I. Pigment Red 57, calcium salt
  • Calcium 3-hydroxy-4-((4-methyl-2-sulphonatophenyl)azo)-2-naphthoate

Superlist Names

  • C.I. Pigment Red 57, calcium salt (1:1)
  • C.I. Pigment Red 57:1
  • D&C Red No. 7

Registry Numbers

CAS Registry Number

  • 5281-04-9

FDA UNII

  • ECW0LZ41X8

Other Registry Numbers

  • 106008-82-6
  • 11145-41-8
  • 116357-55-2
  • 116711-94-5
  • 12238-33-4
  • 12238-35-6
  • 12238-36-7
  • 12238-46-9
  • 12238-47-0
  • 1255344-55-8
  • 128282-14-4
  • 1325-10-6
  • 149003-64-5
  • 217821-04-0
  • 37340-13-9
  • 39340-05-1
  • 53028-84-5
  • 53612-29-6
  • 57176-64-4
  • 57917-29-0
  • 60748-28-9
  • 69458-81-7

System Generated Number

  • 0005281049

Molecular Formulas

Molecular Formula

  • C18-H14-N2-O6-S.Ca

Molecular Formula Fragments

  • C18-H14-N2-O6-S
  • Ca
  • COMPONENT

Structure Descriptors

InChI

1S/C18H14N2O6S.Ca/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);/q;+2/p-2/b20-19+;

InChIKey

PZTQVMXMKVTIRC-RZLHGTIFSA-L

Smiles

c12c(c(c(C(=O)[O-])cc1cccc2)O)\N=N\c1c(cc(C)cc1)S(=O)(=O)[O-].[Ca+2]