6-Amino-4-hydroxy-3-[2-[7-sulfo-4-[2-(4-sulfophenyl)diazenyl]-1-naphthalenyl]diazenyl]-2,7-naphthalenedisulfonic acid

CAS Registry Number®

25738-38-9

CAS Name

6-Amino-4-hydroxy-3-[2-[7-sulfo-4-[2-(4-sulfophenyl)diazenyl]-1-naphthalenyl]diazenyl]-2,7-naphthalenedisulfonic acid

Molecular Formula

C26H19N5O13S4

Molecular Mass

737.71

Cite this Page

6-Amino-4-hydroxy-3-[2-[7-sulfo-4-[2-(4-sulfophenyl)diazenyl]-1-naphthalenyl]diazenyl]-2,7-naphthalenedisulfonic acid.   CAS Common Chemistry.   CAS, a division of the American Chemical Society, n.d.   http://commonchemistry.cas.org/detail?cas_rn=25738-38-9 (retrieved 2025-01-18) (CAS RN: 25738-38-9).  Licensed under the Attribution-Noncommercial 4.0 International License (CC BY-NC 4.0).

Other Names and Identifiers

InChI

InChI=1S/C26H19N5O13S4/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=DUUHLAZWLLCPSP-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

Canonical SMILES

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]-
  • C.I. Food Black 2
  • 2,7-Naphthalenedisulfonic acid, 6-amino-4-hydroxy-3-[[7-sulfo-4-[(4-sulfophenyl)azo]-1-naphthalenyl]azo]-
  • 6-Amino-4-hydroxy-3-[2-[7-sulfo-4-[2-(4-sulfophenyl)diazenyl]-1-naphthalenyl]diazenyl]-2,7-naphthalenedisulfonic acid
  • Bayscript Black BS Liquid

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