Flucytosine API from China
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 — 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
• 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