C6H5Cl2NO3S
242.08 g/mol
Dye & PigmentWarning
4-Amino-2,5-dichlorobenzenesulfonic acid
CAS88-50-6EC201-836-0
Category
Dye & Pigment
Compound Class
Amine
Primary Use
Dye intermediate
4-Amino-2,5-dichlorobenzenesulfonic acid is a chemical compound used primarily as a dye intermediate. It features an aromatic ring substituted with an amino group, two chlorine atoms, and a sulfonic acid group, contributing to its utility in industrial dye synthesis.
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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3-amino-6-chlorotoluene-4-sulfonic acid
CAS88-53-9
Intermediate for paint and pigment
ReferenceSame Category
2,4-diaminobenzenesulfonic acid
CAS88-63-1
Dye intermediate for azo dyes
ReferenceSame Category
4-Acetamido-2-aminobenzenesulfonic acid
CAS88-64-2
dye intermediate
ReferenceSame Category
O-nitroaniline
CAS88-74-4
Intermediate for azo dyes and pigments
Safety Reference
Warning
H302Harmful if swallowed
H315Causes skin irritation
H319Causes serious eye irritation
H335May cause respiratory irritation
Customs Tariff Classification
The international HS code for 4-Amino-2,5-dichlorobenzenesulfonic acid (CAS 88-50-6) is 2921.42.
HS code (international, 6-digit)
2921.42
EU CN code (8-digit)
2921 42 00
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
4-amino-2,5-dichlorobenzenesulfonic acid
InChIKey
SJCTXIKOXTUQHC-UHFFFAOYSA-N
SMILES
C1=C(C(=CC(=C1Cl)S(=O)(=O)O)Cl)N
Synonyms (10)
- 2,5-Dichlorosulfanilic acid
- Sulfanilic acid,5-dichloro-
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