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H319Causes serious eye irritation
Sourcing 4-Nitro-4'-aminostilbene-2,2'-disulfonic acid?
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Benzenesulfonic acid, 5-amino-2-[2-[4-(4,5-dihydro-3-methyl-5-oxo-1H-pyrazol-1-yl)-2-sulfophenyl]ethenyl]-
dye intermediate
Sourcing 4-Nitro-4'-aminostilbene-2,2'-disulfonic acid?
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4-Nitro-4'-aminostilbene-2,2'-disulfonic acid is a stilbene dye intermediate used in the production of dyes and pigments. It features two sulfonic acid groups and an aromatic stilbene backbone, 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.
The international HS code for 4-Nitro-4'-aminostilbene-2,2'-disulfonic acid (CAS 119-72-2) is 2921.49.
2921.49
2921 49 00
Classification per the EU customs inventory ECICS (2026-07 snapshot, HS 2022). National tariff lines and product form can affect the final classification.
5-amino-2-[(E)-2-(4-nitro-2-sulfophenyl)ethenyl]benzenesulfonic acid
GHBWBMDGBCKAQU-OWOJBTEDSA-N
C1=CC(=C(C=C1N)S(=O)(=O)O)/C=C/C2=C(C=C(C=C2)[N+](=O)[O-])S(=O)(=O)O
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