Sourcing 4-Hydroxy-6-(3-sulphoanilino)naphthalene-2-sulphonic acid?
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Dye intermediate
Sourcing 4-Hydroxy-6-(3-sulphoanilino)naphthalene-2-sulphonic acid?
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This compound is a sulfonated aromatic amine compound used as a dye intermediate. Its structure features a naphthalene core substituted with hydroxyl and sulfonic acid groups, along with an anilino moiety.
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-Hydroxy-6-(3-sulphoanilino)naphthalene-2-sulphonic acid (CAS 25251-42-7) is 2922.29.
2922.29
2922 29 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-hydroxy-6-(3-sulfoanilino)naphthalene-2-sulfonic acid
LSDXXYNYKPLONE-UHFFFAOYSA-N
C1=CC(=CC(=C1)S(=O)(=O)O)NC2=CC3=C(C=C(C=C3C=C2)S(=O)(=O)O)O