2933.59.59.00/Trifluridine Pure Substance/Japan

Trifluridine Pure Substance from Japan

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 — Japan → United States

12.5%

Rate breakdown

9903.05.4912.5%Section 301 (forced labor) — Japan (col1 rate < 12.5 percent): MFN < 12.5% → total duty capped at 12.5%

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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