Procainamide Hydrochloride from Mexico
Procainamide hydrochloride, an antiarrhythmic agent, features an acyclic para-aminobenzamide structure with hydrochloride salt. The salt follows the parent amide into HTS 2924.19.80.00 per chapter salt classification rules.
Duty Rate — Mexico → United States
110%
Rate breakdown
9903.04.6093.5%Except as provided in heading 9903.04.61, patented pharmaceutical articles as provided for in subdivisions (c) and (d) of U.S. note 40 to this subchapter
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
• Controlled substance documentation if applicable; FDA DMF reference
• Salt equivalence testing required for tariff consistency
• Pharma vs bulk chemical declaration prevents 29xx industrial shift