Theobromine Powder from China
Theobromine is a methylxanthine alkaloid with fused pyrimidine rings in its purine structure, used in pharmaceuticals and as a chemical intermediate. Classified under HTS 2933.59.70.00 due to its aromatic nature and inclusion in additional U.S. note 3 to section VI. It qualifies as a separate chemically defined heterocyclic compound.
Duty Rate — China → United States
19%
Rate breakdown
9903.05.3112.5%Section 301 (forced labor) — additional 12.5% ad valorem on products of China
Import Tips
• Provide spectroscopic data (NMR, IR) confirming pyrimidine ring structure for CBP verification
• Ensure packaging meets UN standards for chemical transport if in powder form over certain quantities
• Avoid bulk packaging that suggests industrial use, which could trigger reclassification