Flucytosine Micronized Powder
Flucytosine is a fluorinated aromatic pyrimidine antifungal agent, imported as micronized API powder. Falls under HTS 2933.59.80.00 for modified aromatic pyrimidine heterocycles per chapter note on halogenated derivatives. Used in pharmaceutical manufacturing.
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Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If purine-based classification prevails
Some fused ring systems compete between 2933.52 and pyrimidine provisions; last numerical order rules.
If in sterile injectable form
Finished dosage forms become Chapter 30 medicaments.
If primarily halogenated hydrocarbon
Heavy halogen substitution may prioritize Chapter 29 acyclic heading over heterocycle.
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Import Tips & Compliance
• Particle size distribution certificate required for micronized grade to confirm specifications
• Halogen content declaration essential as chapter notes include fluorinated derivatives
• Segregate from other APIs during shipping to avoid cross-contamination claims
Related Products under HTS 2933.59.80.00
Aminophylline USP Powder
Aminophylline is a heterocyclic compound containing a xanthine (purine) structure with pyrimidine rings, used as a bronchodilator for respiratory conditions. It falls under HTS 2933.59.80.00 as an aromatic heterocyclic compound with nitrogen hetero-atoms in pyrimidine rings, not elsewhere specified. Typically imported as a pharmaceutical-grade powder for compounding or manufacturing.
Dipyridamole API
Dipyridamole is an aromatic heterocyclic pharmaceutical intermediate with pyrimidine rings, used in antiplatelet formulations. Classified under HTS 2933.59.80.00 for other aromatic pyrimidine hetero-compounds. Imported as bulk active pharmaceutical ingredient (API) powder.
Pipobroman
Pipobroman is a brominated pyrimidine alkylating agent for chemotherapy, aromatic structure. Classified HTS 2933.59.80.00 as other aromatic pyrimidine with halogenation. Rare API import.
Dihydro-5-azacitidine
Dihydro-5-azacitidine is a modified pyrimidine nucleoside analog for epigenetic research, technically aromatic. HTS 2933.59.80.00 as modified aromatic aza-pyrimidine. Research chemical.
Pyrimethamine Technical Grade
Pyrimethamine is a synthetic aromatic pyrimidine derivative used as an antimalarial agent and veterinary coccidiostat. It qualifies for HTS 2933.59.80.00 as an other aromatic heterocyclic with pyrimidine ring structure. Typically imported in technical powder form for further processing.
Sulfadiazine Sodium Salt
Sulfadiazine sodium is the sodium salt of a pyrimidine-containing sulfonamide antibiotic, aromatic heterocyclic structure. Classified in HTS 2933.59.80.00 as the organic base occurs after sulfonated derivatives per chapter salt notes. Pharmaceutical bulk import.