Colchicine from China
Colchicine contains a tropolone ring system (modified aromatic heterocycle) used for gout treatment and as an anti-inflammatory drug. It falls under HTS 2934.99.30.00 as a chemically defined aromatic heterocyclic pharmaceutical drug.
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
• Include Certificates of Analysis showing total alkaloid content and absence of related substances
• Provide REMS program documentation if importing for US distribution due to safety restrictions
• Declare exact moisture content as it affects stability during storage and transport