Carbamazepine from Mexico
Carbamazepine, an iminostilbene derivative, functions as an anticonvulsant with aromatic cyclic amide structure. Classified under HTS 2924.29.77 as other aromatic cyclic amides. Chemically defined organic compound meeting chapter 29 criteria.
Duty Rate — Mexico → United States
16.5%
Rate breakdown
9903.05.5510%Except for products described in headings 9903.05.85–9903.05.92 and 9903.05.94, articles the product of Mexico, as provided for in U.S. note 52 to this subchapter
Import Tips
• Submit polymorph characterization (Form III preferred) to verify chemical identity
• Avoid aqueous solutions unless meeting note (d) transport criteria
• Include DMF references for FDA-regulated bulk drug substance imports