Safety Reference
Danger
H314Causes severe skin burns and eye damage
H318Causes serious eye damage
H315Causes skin irritation
H319
Sourcing 1-Naphthol-3,6-disulfonic acid?
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dye intermediate
Sourcing 1-Naphthol-3,6-disulfonic acid?
Post a free purchase request — no account needed. It reaches suppliers of this product, and replies go straight to your inbox.
1-Naphthol-3,6-disulfonic acid is an organic compound used primarily as an intermediate in the production of azo dyes. It features a naphthalene ring system with hydroxyl and sulfonic acid groups, giving it high water solubility and suitability for 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 1-Naphthol-3,6-disulfonic acid (CAS 578-85-8) is 2908.99.
2908.99
2908 99 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-hydroxynaphthalene-2,7-disulfonic acid
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