4-Amino-1-naphthalenesulfonic Acid from Mexico
4-Amino-1-naphthalenesulfonic acid is an aromatic monoamine derivative of 1-naphthylamine with a sulfonic acid group, used as a dye intermediate. It is a chemically defined compound, classified under the tariff item for naphthylamine derivatives. The primary amine function is the principal characteristic, aligning with heading 29.21.
Duty Rate — Mexico → Canada
0%
Import Tips
• Confirm 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 support the classification