1-Naphthalenesulfonic acid, 4-amino-3-[2-[4′-[2-(2-amino-8-hydroxy-6-sulfo-1-naphthalenyl)diazenyl][1,1′-biphenyl]-4-yl]diazenyl]-, sodium salt (1:2)

CAS Registry Number®

1937-35-5

CAS Name

1-Naphthalenesulfonic acid, 4-amino-3-[2-[4′-[2-(2-amino-8-hydroxy-6-sulfo-1-naphthalenyl)diazenyl][1,1′-biphenyl]-4-yl]diazenyl]-, sodium salt (1:2)

Molecular Formula

C32H24N6O7S2.2Na

Cite this Page

1-Naphthalenesulfonic acid, 4-amino-3-[2-[4′-[2-(2-amino-8-hydroxy-6-sulfo-1-naphthalenyl)diazenyl][1,1′-biphenyl]-4-yl]diazenyl]-, sodium salt (1:2).   CAS Common Chemistry.   CAS, a division of the American Chemical Society, n.d.   http://commonchemistry.cas.org/detail?cas_rn=1937-35-5 (retrieved 2024-11-25) (CAS RN: 1937-35-5).  Licensed under the Attribution-Noncommercial 4.0 International License (CC BY-NC 4.0).

Other Names and Identifiers

InChI

InChI=1S/C32H24N6O7S2.2Na/c33-26-14-9-20-15-23(46(40,41)42)16-28(39)30(20)32(26)38-36-22-12-7-19(8-13-22)18-5-10-21(11-6-18)35-37-27-17-29(47(43,44)45)24-3-1-2-4-25(24)31(27)34;;/h1-17,39H,33-34H2,(H,40,41,42)(H,43,44,45);;

InChIKey

InChIKey=CYSVTGOZXJXVHH-UHFFFAOYSA-N

SMILES

N(=NC1=CC=C(C=C1)C2=CC=C(N=NC3=C(N)C4=C(C(S(=O)(=O)O)=C3)C=CC=C4)C=C2)C=5C6=C(C=C(S(=O)(=O)O)C=C6O)C=CC5N.[Na]

Canonical SMILES

[Na].O=S(=O)(O)C1=CC(O)=C2C(C=CC(N)=C2N=NC3=CC=C(C=C3)C4=CC=C(N=NC=5C=C(C=6C=CC=CC6C5N)S(=O)(=O)O)C=C4)=C1

Other Names for this Substance

  • 1-Naphthalenesulfonic acid, 4-amino-3-[2-[4′-[2-(2-amino-8-hydroxy-6-sulfo-1-naphthalenyl)diazenyl][1,1′-biphenyl]-4-yl]diazenyl]-, sodium salt (1:2)
  • C.I. Direct Red 13, disodium salt
  • Pontamine Bordeaux B
  • 1-Naphthalenesulfonic acid, 4-amino-3-[[4′-[(2-amino-8-hydroxy-6-sulfo-1-naphthalenyl)azo][1,1′-biphenyl]-4-yl]azo]-, disodium salt
  • C.I. Direct Red 13

View All

Deleted or Replaced CAS Registry Numbers

56449-25-3, 70248-70-3

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