C12H12N2O6S2
344.4 g/mol
Dye & PigmentWarning
Benzidine-2,2'-disulfonic acid
CAS117-61-3EC204-200-0
Category
Dye & Pigment
Compound Class
Amine
Primary Use
Dye intermediate for azo dyes
Benzidine-2,2'-disulfonic acid is a chemical compound that appears as leaflets, prisms, or a light purple powder. It is primarily used as an intermediate in the production of azo dyes.
Dye intermediate for azo dyes
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
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2,4-diaminobenzenesulfonic acid
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Dye intermediate for azo dyes
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2-naphthol-6,8-disulfonic acid
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Dye intermediate for azo dyes
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Dye intermediate for azo dyes
ReferenceSame Category
2-amino-1,5-naphthalenedisulfonic acid
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4,4'-[(4-{Bis[(²H₃)methyl]amino}phenyl)methylene]bis(N,N-dimethylaniline)
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ReferenceSame Category
7-Amino-1,3,6-naphthalenetrisulfonic acid
CAS118-03-6
dye intermediate
ReferenceSame Category
1-(4'-Sulfophenyl)-3-carboxy-5-pyrazolone
CAS118-47-8
pyrazolone dye intermediate
Safety Reference
Warning
H315Causes skin irritation
H319Causes serious eye irritation
H351Suspected of causing cancer
Customs Tariff Classification
The international HS code for Benzidine-2,2'-disulfonic acid (CAS 117-61-3) is 2921.59.
HS code (international, 6-digit)
2921.59
EU CN code (8-digit)
2921 59 90
Classification per the EU customs inventory ECICS (2026-07 snapshot, HS 2022). National tariff lines and product form can affect the final classification.
Identifiers
IUPAC Name
5-amino-2-(4-amino-2-sulfophenyl)benzenesulfonic acid
InChIKey
MBJAPGAZEWPEFB-UHFFFAOYSA-N
SMILES
C1=CC(=C(C=C1N)S(=O)(=O)O)C2=C(C=C(C=C2)N)S(=O)(=O)O
Synonyms (29)
- 2,2'-Benzidinedisulfonic acid
- 2,2'-Disulfobenzidine
- 2.2'-Benzidindisulfosaure
- 4, 2,2'-diamino-
- 4,2'-biphenyldisulfonic acid
- 6,6'-Bimetanilic acid
- Benzidine, 2,2'-disulfo-
- Benzidine,2'-disulfo-
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