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Substance Name: CI 27755
RN: 2118-39-0
InChIKey: SMBAGGHBUKLZPQ-IDOXDSHBSA-J

Molecular Formula

  • C26-H19-N5-O13-S4.4Na

Molecular Weight

  • 809.651
 
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Names and Synonyms

Name of Substance

  • 2,7-Naphthalenedisulfonic acid, 6-amino-4-hydroxy-3-((7-sulfo-4-((sulfophenyl)azo)-1-naphthalenyl- )azo)-, tetrasodium salt
  • CI 27755
  • Food black 2
  • Tetrasodium 6-amino-4-hydroxy-3-((7-sulfo-4-((4-sulfophenyl)azo)-1-naphthalen- yl)azo-2,7-naphthalenedisulfonate)

Synonyms

  • CCRIS 7487
  • EINECS 218-326-9

Systematic Names

  • 2,7-Naphthalenedisulfonic acid, 6-amino-4-hydroxy-3-((7-sulfo-4-((4-sulfophenyl)azo)-1-naphthalenyl)azo)-, tetrasodium salt
  • 2,7-Naphthalenedisulfonic acid, 6-amino-4-hydroxy-3-(2-(7-sulfo-4-(2-(4-sulfophenyl)diazenyl)-1-naphthalenyl)diazenyl)-, sodium salt (1:4)
  • C.I. Food Black 2
  • Tetrasodium 6-amino-4-hydroxy-3-((7-sulphonato-4-((4-sulphonatophenyl)azo)-1-naphthyl)azo)naphthalene-2,7-disulphonate

Registry Numbers

CAS Registry Number

  • 2118-39-0

Other Registry Number

  • 166889-67-4

System Generated Number

  • 0002118390

Molecular Formulas

Molecular Formula

  • C26-H19-N5-O13-S4.4Na

Molecular Formula Fragments

  • C26-H19-N5-O13-S4
  • COMPONENT
  • Na

Structure Descriptors

InChI

1S/C26H19N5O12S4.4Na/c27-20-12-18-13(9-23(20)46(38,39)40)10-24(47(41,42)43)25(26(18)32)31-30-22-8-7-21(17-6-3-15(44(33)34)11-19(17)22)29-28-14-1-4-16(5-2-14)45(35,36)37;;;;/h1-12,32H,27H2,(H,33,34)(H,35,36,37)(H,38,39,40)(H,41,42,43);;;;/q;4*+1/p-4/b29-28+,31-30+;;;;

InChIKey

SMBAGGHBUKLZPQ-IDOXDSHBSA-J

Smiles

c1(S(=O)(=O)[O-])c(\N=N\c2c3c(ccc(S(=O)[O-])c3)c(\N=N\c3ccc(S(=O)(=O)[O-])cc3)cc2)c(O)c2c(c1)cc(S(=O)(=O)[O-])c(N)c2.[Na+].[Na+].[Na+].[Na+]