This compound is an azo dye intermediate used in the synthesis of dyes and pigments. It contains an amino group and a sulfonic acid group, contributing to its reactivity and solubility in aqueous systems.
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.
Sourcing 4-((4-aminophenyl)diazenyl)benzenesulfonic acid?
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Sulfanilic acid
Intermediate for dyes and organic chemicals
Chromotropic acid
Azo dye intermediate
2-naphthol-6-sulfonic acid
Azo dye intermediate
P-aminoacetanilide
Azo dye intermediate
2-aminobenzothiazole
Azo dye intermediate
P-anisidine
azo dye intermediate
Cinquasia red
Industrial pigment for paints and inks
4-bromoaniline
Preparation of azo dyes
The international HS code for 4-((4-aminophenyl)diazenyl)benzenesulfonic acid (CAS 104-23-4) is 2927.00.
2927.00
2927 00 00
Classification per the EU customs inventory ECICS (2026-07 snapshot, HS 2022). National tariff lines and product form can affect the final classification.
4-[(4-aminophenyl)diazenyl]benzenesulfonic acid
PPVRMPPLECDING-UHFFFAOYSA-N
C1=CC(=CC=C1N)N=NC2=CC=C(C=C2)S(=O)(=O)O
Sourcing 4-((4-aminophenyl)diazenyl)benzenesulfonic acid?
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