Safety Reference
Danger
H314Causes severe skin burns and eye damage
H318Causes serious eye damage
H319Causes serious eye irritation
Sourcing 7-aminonaphthalene-1,3-disulfonic acid?
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intermediate for azo dyes
Sourcing 7-aminonaphthalene-1,3-disulfonic acid?
Post a free purchase request — no account needed. It reaches suppliers of this product, and replies go straight to your inbox.
7-Aminonaphthalene-1,3-disulfonic acid is a sulfonated derivative of naphthalene containing an amino group. It is primarily used as an intermediate in the production of azo 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 7-aminonaphthalene-1,3-disulfonic acid (CAS 86-65-7) 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.
7-aminonaphthalene-1,3-disulfonic acid
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C1=CC(=CC2=C(C=C(C=C21)S(=O)(=O)O)S(=O)(=O)O)N