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Flucytosine API Powder from China

Flucytosine is a fluorinated pyrimidine antifungal drug with nitrogen hetero-atoms only in its ring structure. Classified in HTS 2933.59.59.00 as an 'other' drug under pyrimidine compounds. Excludes halogen emphasis that might shift classification.

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

Provide NMR spectrum confirming pyrimidine ring integrity despite fluorination

Controlled substance documentation may be required for antifungal APIs

Segregate from dosage forms to maintain Chapter 29 chemical classification