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Home/Compounds/Dye & Pigment/2,5-Diaminobenzene-1,4-disulphonic acid
C6H8N2O6S2
268.3 g/mol
Dye & Pigment

1,4-Benzenedisulfonic acid, 2,5-diamino-

CAS7139-89-1EC230-439-5
Category
Dye & Pigment
Compound Class
Amine
Primary Use
dye intermediate

This compound is an aromatic compound containing two amino and two sulfonic acid groups. It is primarily used as a dye intermediate in industrial manufacturing.

dye intermediate

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 0.84

1,3-Benzenedisulfonic acid, 4,6-diamino-

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dye intermediate

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naphthalene disulfonate dye intermediate

ReferenceSame Category

Reactive Blue 160

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Reactive dye for textiles

ReferenceSame Category

2-Naphthalenesulfonic acid, 7-(acetylamino)-4-hydroxy-3-((4-((2-(sulfooxy)ethyl)sulfonyl)phenyl)azo)-, sodium salt

CAS71902-15-3

reactive dye for textile coloring

ReferenceSame Category

Alizarin

CAS72-48-0

Dye and pigment precursor

Customs Tariff Classification

The international HS code for 1,4-Benzenedisulfonic acid, 2,5-diamino- (CAS 7139-89-1) is 2921.51.

HS code (international, 6-digit)

2921.51

EU CN code (8-digit)

2921 51 19

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

2,5-diaminobenzene-1,4-disulfonic acid

InChIKey

VOPSFYWMOIKYEM-UHFFFAOYSA-N

SMILES

C1=C(C(=CC(=C1S(=O)(=O)O)N)S(=O)(=O)O)N

Synonyms (6)

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