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Home/Compounds/Dye & Pigment/Acid Green 20
C22H16N6Na2O7S2
586.5 g/mol
Dye & Pigment

Disodium 4-amino-3-((4-aminophenyl)azo)-5-hydroxy-6-(phenylazo)naphthalene-2,7-disulphonate

CAS5850-39-5EC227-452-3
Category
Dye & Pigment
Compound Class
Aromatic
Primary Use
Acid dye for textiles

This compound is an acid dye primarily used for coloring textiles. It is a disodium salt of a complex naphthalene disulfonate structure with multiple azo linkages, containing amine and hydroxy functional groups.

Acid dye for textiles

Content scope: Information here supports chemical identification and industrial supply, research, and manufacturing contexts. It is not a therapeutic claim, medical advice, or drug-use instructions.

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Identifiers
IUPAC Name

disodium;4-amino-3-[(4-aminophenyl)diazenyl]-5-hydroxy-6-phenyldiazenylnaphthalene-2,7-disulfonate

InChIKey

VGCGYVHOTSGFBE-UHFFFAOYSA-L

SMILES

C1=CC=C(C=C1)N=NC2=C(C3=C(C(=C(C=C3C=C2S(=O)(=O)[O-])S(=O)(=O)[O-])N=NC4=CC=C(C=C4)N)N)O.[Na+].[Na+]

Synonyms (18)
  • Acid Black HG
  • Acid Dark Green
  • Acilan Black Green B
  • Amido Black Green B
  • C.I. Acid Green 20
  • Naphtocard Green B
  • Nitraniline Black
  • Oxanal Black G