Direct red 75

C33H22N8Na4O15S4CAS 2829-43-8990.78 g/mol

NH2SO−OOOHNNNHOHNNNNH2SO−OOHOSO−OOSO−OONa+Na+Na+Na+
AzoPhenolPrimary amineSulfonic acid

Properties

Molecular formula
C33H22N8Na4O15S4
Molar mass
990.78 g/mol
Exact mass
989.9678 Da
logP
4.52Crippen estimate
Polar surface area
404.0 Ų
H-bond donors / acceptors
10 / 17
Rotatable bonds
10

Hazards

No GHS classification is on file for this compound. That is not evidence that it is harmless.

Identifiers

CAS number
2829-43-8
SMILES
Nc1ccc2cc(S([O-])(=O)=O)cc(O)c2c1N=Nc1ccc(NC(=O)Nc2ccc(N=Nc3c(N)ccc4cc(S([O-])(=O)=O)cc(O)c34)c(S([O-])(=O)=O)c2)cc1S([O-])(=O)=O.[Na+].[Na+].[Na+].[Na+]
InChI

The InChI we hold for this record describes the parent acid and the metal separately rather than the salt above, so it is not shown here.

Weigh it out

Type any one amount. The others follow from the molar mass.

Names and synonyms

56 names · show all
  • 2-Naphthalenesulfonic acid, 5,5′-[carbonylbis[imino(2-sulfo-4,1-phenylene)-2,1-diazenediyl]]bis[6-amino-4-hydroxy-, sodium salt (1:4)
  • C.I. Direct Red 75, tetrasodium salt
  • 2-Naphthalenesulfonic acid, 5,5′-[carbonylbis[imino(2-sulfo-4,1-phenylene)azo]]bis[6-amino-4-hydroxy-, tetrasodium salt
  • C.I. Direct red 75
  • Chlorazol fast pink
  • C.I. 25380
  • Aizen primula pink 2BLH
  • Aizen Primula Pink 2BLH special
  • Amanil fast pink 2B
  • Atlantic fast pink 2BL
  • Belamine fast pink BL
  • Benzanil fast pink BK
  • Calcodur pink 2BL
  • Chloramine fast pink BK
  • Chlorantine fast pink 2B
  • Chlorantine fast red 2B
  • Chlorazol fast pink BK
  • Chrome leather pink B
  • Diazol light pink 2B
  • Diphenyl blue red B
  • Diphenyl fast pink BF
  • Diphenyl fast pink BK
  • Direct fast pink B
  • Direct fast pink 4BL
  • Direct light pink M 2BL
  • Eliamina pink 2BL
  • Fastusol pink BBA-CF
  • Fastusol pink BBL
  • Fenaluz pink 2B
  • Helion pink 2B
  • Paranol fast pink 2BL
  • Pyrazoline pink 4BL
  • Saturn pink 2B
  • Sirius pink 4BL
  • Sirius pink BB
  • Sirius supra rubine B
  • Solantine pink 4BL
  • Solar rubine CB
  • Solius pink 2B
  • Suprazo pink 2B
  • Suprexcel pink BL
  • Tertrodirect fast rose 2B
  • Triantine fast pink B
  • Triantine light pink B
  • Direct fast pink S
  • Direct fast rose S
  • Direct lightfast pink S
  • Direct lightfast rose S
  • Lightfast rose S
  • Diphenyl pink EBE
  • Benzo fast pink 2BL
  • Chlorazol fast pink 2BL
  • Sirius rose BB
  • Calcodur pick 2BL
  • Sirius pink 2B
  • Direct pink 2B

Work with Direct red 75

Similar compounds

Tanimoto similarity of circular fingerprints over the whole catalogue.

Elsewhere