Theobromine Powder from Mexico
Theobromine (3,7-dimethylxanthine), a methylxanthine alkaloid with fused nitrogen-heterocyclic rings, extracted for pharmaceutical and food applications. Falls under HTS 2933.99.9701 as 'other' heterocyclic compounds with nitrogen hetero-atoms only. Excluded from 2939 as it's often supplied in pure form rather than crude alkaloid mixtures.
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
• Verify COA shows single isomer purity; mixtures of xanthine isomers fall under Chapter note (b)
• Include stabilizer declaration if present; Chapter note (f) allows but requires proof of necessity