Theobromine Anhydrous Crystals from Canada
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 — Canada → United States
100%
Rate breakdown
9903.04.6096.3%Pharmaceuticals: patented pharma articles — 100% floor rate
9903.05.900%Articles already subject to Section 232 (steel/aluminum/copper + derivatives, autos + parts, wood, medium/heavy vehicles + parts, semiconductors, patented pharma) — U.S. note 52(f)
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)