Tobias Acid (2-Amino-8-naphthalenesulfonic Acid) from China
Tobias acid, or 2-amino-8-naphthalenesulfonic acid, is a key intermediate for acid dyes and pigments. It is a naphthylamine derivative with a sulfonic acid group, classified under the tariff item for naphthylamine derivatives. The primary amine function is the principal characteristic, aligning with heading 29.21.
Duty Rate — China → Canada
0%
Import Tips
• Ensure the product is a separate chemically defined compound under Chapter 29 Note 1(a)
• If the product is a salt, classify it with the parent compound per Note 5(C)(1)
• Provide a certificate of analysis to the CBSA to confirm the chemical identity