C6H6N2O5S
218.19 g/mol
Dye & PigmentWarning
2-Amino-5-nitrobenzenesulfonic acid
CAS96-75-3EC202-531-5
Category
Dye & Pigment
Compound Class
Aromatic
Primary Use
dye intermediate
2-Amino-5-nitrobenzenesulfonic acid is an arenesulfonic acid with an amino group at the ortho position and a nitro group at the para position relative to the sulfonic acid group. It is primarily used as a dye intermediate in the production of various colorants.
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
ReferenceSame Category
Picramic acid
CAS96-91-3
oxidation base for dyeing fur
ReferenceSame Category
2-Amino-6-nitro-1-phenol-4-sulfonic acid
CAS96-93-5
Dye intermediate
ReferenceSame Category
2-nitro-4-methoxyaniline
CAS96-96-8
Pigment intermediate for fine chemicals
ReferenceSame Category
4-chloro-3-nitrobenzenesulfonamide
CAS97-09-6
Chemical intermediate for azo dyes
Safety Reference
Warning
H319Causes serious eye irritation
Customs Tariff Classification
The international HS code for 2-Amino-5-nitrobenzenesulfonic acid (CAS 96-75-3) 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
2-amino-5-nitrobenzenesulfonic acid
InChIKey
LTASFWDWBYFZQQ-UHFFFAOYSA-N
SMILES
C1=CC(=C(C=C1[N+](=O)[O-])S(=O)(=O)O)N
Synonyms (10)
- 4-Nitro-2-sulfoaniline
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