1-Naphthylamine-4,8-disulfonic Acid from Japan
1-Naphthylamine-4,8-disulfonic acid is a disulfonic acid derivative of 1-naphthylamine, used as a dye intermediate in textile and leather applications. It retains the primary amine function and is classified under the tariff item for naphthylamine derivatives. The presence of two sulfonic acid groups does not change its classification as an aromatic monoamine derivative.
Duty Rate — Japan → Canada
0%
Import Tips
• Verify the product is a separate chemically defined compound under Chapter 29 Note 1(a)
• If the product is a salt, ensure it is classified with the parent compound per Note 5(C)(1)
• Provide a certificate of analysis to the CBSA to confirm the chemical structure