Flucytosine API from Japan
Flucytosine is a fluorinated pyrimidine analog used as an antifungal agent, featuring a pyrimidine ring with nitrogen hetero-atoms only. Classified under HTS 2933.59.95.00 for other pyrimidine ring compounds not specified elsewhere. Its chemical definition fits Chapter 29 restrictions for separate organic compounds.
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%
Import Tips
• Submit FDA Drug Master File (DMF) references; misdeclaration as generic chemical leads to penalties
• Verify fluorine substitution doesn't trigger Chapter 28 inorganic classification
• Avoid mixing with excipients; pure form only for this HTS