Safety Reference
Danger
H314Causes severe skin burns and eye damage
H318Causes serious eye damage
Sourcing Naphthionic acid?
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Naphthalene sulfonic acid dye intermediate
Sourcing Naphthionic acid?
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Naphthionic acid is an aminonaphthalenesulfonic acid used as a dye intermediate, particularly in the synthesis of naphthalene sulfonic acid-based dyes.
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 Naphthionic acid (CAS 84-86-6) is 2921.45.
2921.45
2921 45 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-aminonaphthalene-1-sulfonic acid
NRZRRZAVMCAKEP-UHFFFAOYSA-N
C1=CC=C2C(=C1)C(=CC=C2S(=O)(=O)O)N