2,7-Naphthalenedisulfonic acid, 4,4′-[carbonylbis[imino(5-methoxy-2-methyl-4,1-phenylene)-2,1-diazenediyl]]bis[5-hydroxy-, sodium salt (1:4)

CAS Registry Number®

1937-34-4
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CAS Name

2,7-Naphthalenedisulfonic acid, 4,4′-[carbonylbis[imino(5-methoxy-2-methyl-4,1-phenylene)-2,1-diazenediyl]]bis[5-hydroxy-, sodium salt (1:4)

Molecular Formula

C37H32N6O17S4.4Na

Cite this Page

2,7-Naphthalenedisulfonic acid, 4,4′-[carbonylbis[imino(5-methoxy-2-methyl-4,1-phenylene)-2,1-diazenediyl]]bis[5-hydroxy-, sodium salt (1:4).   CAS Common Chemistry.   CAS, a division of the American Chemical Society, n.d.   http://commonchemistry.cas.org/detail?cas_rn=1937-34-4 (retrieved 2024-05-17) (CAS RN: 1937-34-4).  Licensed under the Attribution-Noncommercial 4.0 International License (CC BY-NC 4.0).

Other Names and Identifiers

InChI

InChI=1S/C37H32N6O17S4.4Na/c1-17-5-27(33(59-3)15-25(17)40-42-29-11-21(61(47,48)49)7-19-9-23(63(53,54)55)13-31(44)35(19)29)38-37(46)39-28-6-18(2)26(16-34(28)60-4)41-43-30-12-22(62(50,51)52)8-20-10-24(64(56,57)58)14-32(45)36(20)30;;;;/h5-16,44-45H,1-4H3,(H2,38,39,46)(H,47,48,49)(H,50,51,52)(H,53,54,55)(H,56,57,58);;;;

InChIKey

InChIKey=MRGPUZRPKUKNGM-UHFFFAOYSA-N

SMILES

N(=NC1=CC(OC)=C(NC(NC2=C(OC)C=C(N=NC=3C4=C(C=C(S(=O)(=O)O)C3)C=C(S(=O)(=O)O)C=C4O)C(C)=C2)=O)C=C1C)C=5C6=C(C=C(S(=O)(=O)O)C5)C=C(S(=O)(=O)O)C=C6O.[Na]

Canonical SMILES

[Na].O=C(NC1=CC(=C(N=NC=2C=C(C=C3C=C(C=C(O)C23)S(=O)(=O)O)S(=O)(=O)O)C=C1OC)C)NC4=CC(=C(N=NC=5C=C(C=C6C=C(C=C(O)C56)S(=O)(=O)O)S(=O)(=O)O)C=C4OC)C

Other Names for this Substance

  • 2,7-Naphthalenedisulfonic acid, 4,4′-[carbonylbis[imino(5-methoxy-2-methyl-4,1-phenylene)-2,1-diazenediyl]]bis[5-hydroxy-, sodium salt (1:4)
  • C.I. Direct Red 79, tetrasodium salt
  • C.I. Direct Red 79
  • 2,7-Naphthalenedisulfonic acid, 4,4′-[carbonylbis[imino(5-methoxy-2-methyl-4,1-phenylene)azo]]bis[5-hydroxy-, tetrasodium salt
  • C.I. 29065

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