Trifluridine Pure Substance from China
Trifluridine is a fluorinated pyrimidine nucleoside used as an antiviral agent in ophthalmic solutions. Classifies under HTS 2933.59.59.00 for pyrimidine ring drugs not elsewhere specified. Chapter notes confirm nitrogen hetero-atom priority.
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
• Optical purity certificate essential for chiral pyrimidine derivatives
• Temperature-controlled shipping manifests prevent degradation claims
• Distinguish from trifluridine sodium salt which may classify differently