Theobromine Anhydrous Crystals from China
Theobromine is a methylxanthine alkaloid with fused pyrimidine-imidazole rings, used in pharmaceuticals and as a chemical intermediate. Classified under HTS 2933.59.59.00 for its pyrimidine-containing heterocyclic structure as an 'other' drug. Meets chapter notes for separate chemically defined compounds.
Duty Rate — China → United States
16.2%
Rate breakdown
9903.05.3112.5%Section 301 (forced labor) — additional 12.5% ad valorem on products of China
Import Tips
• Include CoA verifying anhydrous form and >99% purity to confirm chemical identity under heading 2933
• Label as 'not for direct food use' to prevent misclassification into food additive provisions
• For stabilizer-added forms, document necessity for transport per chapter note 2(f)