Food Black 2

CAS Registry Number®

2118-39-0

CAS Name

Food Black 2

Molecular Formula

C26H19N5O13S4.4Na

Cite this Page

Food Black 2.   CAS Common Chemistry.   CAS, a division of the American Chemical Society, n.d.   http://commonchemistry.cas.org/detail?cas_rn=2118-39-0 (retrieved 2024-11-24) (CAS RN: 2118-39-0).  Licensed under the Attribution-Noncommercial 4.0 International License (CC BY-NC 4.0).

Other Names and Identifiers

InChI

InChI=1S/C26H19N5O13S4.4Na/c27-20-12-18-13(9-23(20)47(39,40)41)10-24(48(42,43)44)25(26(18)32)31-30-22-8-7-21(17-6-5-16(11-19(17)22)46(36,37)38)29-28-14-1-3-15(4-2-14)45(33,34)35;;;;/h1-12,32H,27H2,(H,33,34,35)(H,36,37,38)(H,39,40,41)(H,42,43,44);;;;

InChIKey

InChIKey=PBBYAQOETDZGAU-UHFFFAOYSA-N

SMILES

N(=NC=1C(S(=O)(=O)O)=CC2=C(C1O)C=C(N)C(S(=O)(=O)O)=C2)C=3C4=C(C(N=NC5=CC=C(S(=O)(=O)O)C=C5)=CC3)C=CC(S(=O)(=O)O)=C4.[Na]

Canonical SMILES

[Na].O=S(=O)(O)C1=CC=C(N=NC2=CC=C(N=NC3=C(O)C4=CC(N)=C(C=C4C=C3S(=O)(=O)O)S(=O)(=O)O)C=5C=C(C=CC25)S(=O)(=O)O)C=C1

Other Names for this Substance

  • 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 salt
  • 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-[[7-sulfo-4-[(p-sulfophenyl)azo]-1-naphthyl]azo]-, tetrasodium salt
  • Black 7984

View All

Deleted or Replaced CAS Registry Numbers

166889-67-4

CAS INSIGHTSTM
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