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Home/Compounds/Dye & Pigment/C.I. Direct Black 32
C48H40N13Na3O13S3
1172.1 g/mol
Dye & Pigment

2-Naphthalenesulfonic acid, 6-((2-amino-4-((2-hydroxyethyl)amino)phenyl)azo)-3-((4-((4-((7-((2-amino-4-((2-hydroxyethyl)amino)phenyl)azo)-1-hydroxy-3-sulfo-2-naphthalenyl)azo)phenyl)amino)-3-sulfophenyl)azo)-4-hydroxy-, trisodium salt

CAS6428-38-2EC229-209-7
Category
Dye & Pigment
Compound Class
Other
Primary Use
Direct dye for textiles

This compound is a direct dye used for coloring textiles. It is a large, multi-sulfonated azo dye with multiple aromatic rings and sodium counterions, characterized by high polarity and complexity.

Direct dye for textilesColoring cellulosic fibers

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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Related Compounds

SimilarStructure SimilarSimilarity 0.80

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Direct dye for textiles

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Direct Yellow 44

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Direct Orange S

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Identifiers
IUPAC Name

trisodium;6-[[2-amino-4-(2-hydroxyethylamino)phenyl]diazenyl]-3-[[4-[4-[[7-[[2-amino-4-(2-hydroxyethylamino)phenyl]diazenyl]-1-hydroxy-3-sulfonatonaphthalen-2-yl]diazenyl]-2-sulfonatoanilino]phenyl]diazenyl]-4-hydroxynaphthalene-2-sulfonate

InChIKey

ZCLZGAIIRSGUNH-UHFFFAOYSA-K

SMILES

C1=CC(=CC=C1NC2=C(C=C(C=C2)N=NC3=C(C=C4C=CC(=CC4=C3O)N=NC5=C(C=C(C=C5)NCCO)N)S(=O)(=O)[O-])S(=O)(=O)[O-])N=NC6=C(C=C7C=CC(=CC7=C6O)N=NC8=C(C=C(C=C8)NCCO)N)S(=O)(=O)[O-].[Na+].[Na+].[Na+]

Synonyms (18)
  • Benzonerol ABS
  • C.I. Direct Black 32
  • Cotoneral ABS
  • Cotonerol AB
  • Dialuminous Black AB
  • Diazol Fast Black JRA
  • Direct Black 2S
  • Direct Black AB
  • Direct Fast Black CAB
  • Kayarus Black ARX
  • Orbamin Black A Conc.
  • Sumilight Black AB