Trimethoprim USP Powder
Trimethoprim is a synthetic antibacterial agent classified under HTS 2933.59.22.00 as a pyrimidine ring-containing anti-infective drug. This USP-grade powder is used primarily in pharmaceutical formulations for treating bacterial infections in humans and animals. Its aromatic structure and drug function place it specifically in this subcategory.
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Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If non-aromatic pyrimidine structure
Non-aromatic or unmodified aromatic anti-infectives fall under the earlier 'Other' drug subheading per Chapter 29 note on numerical order.
If when imported as antibiotic salt like trimethoprim lactate
Salts of antibiotics are classified under heading 2941 for amine-function compounds rather than the base compound.
If diluted in mixtures exceeding Chapter 29 solvent limits
Solutions not qualifying under Chapter 29 note (e) shift to mixtures of chemicals in Chapter 38.
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Import Tips & Compliance
• Provide FDA Drug Master File and Certificate of Analysis confirming USP purity >99% to avoid reclassification
• Ensure shipments include veterinary or human drug registration docs; mislabeling as feed additive risks detention
• Verify aromatic modification via HPLC certificate to prevent shift to non-aromatic 2933.59.15
Related Products under HTS 2933.59.22.00
Nicarbazin Veterinary Premix 25%
Nicarbazin is a pyrimidine-based anticoccidial drug used in poultry feed, classified under HTS 2933.59.22.00 for its aromatic anti-infective properties. This 25% premix contains the active nicarbazin with carrier for uniform mixing in animal rations. It targets coccidiosis in chickens as a feed additive drug.
Trimethoprim Lactate Soluble Powder
Trimethoprim lactate is the soluble salt form of the anti-infective trimethoprim, falling under HTS 2933.59.22.00 per Chapter notes on salt classification with the base. Used in veterinary water medications for respiratory infections in pigs and calves. The aromatic pyrimidine structure qualifies it as a modified aromatic drug.
Nicarbazin Technical Grade 98%
High-purity nicarbazin (98%) technical material for formulation into anticoccidials, classified as aromatic anti-infective under HTS 2933.59.22.00. Used by pharma manufacturers to produce poultry medications against eimeria parasites. Meets Chapter 29 definition for separate chemically defined compounds.
Trimethoprim Hydrochloride API
Pharmaceutical grade trimethoprim HCl active ingredient for human antibiotic formulations like co-trimoxazole, under HTS 2933.59.22.00. This hydrochloride salt retains classification with the aromatic pyrimidine base per Chapter salt notes. Used against urinary tract and respiratory infections.
Nicarbazin 20% Water-Soluble Granules
Granular water-dispersible nicarbazin for poultry drinking water medication, classified under HTS 2933.59.22.00 as anti-infective drug. The formulation allows 20% active with solubilizers within Chapter 29 stabilizer allowances. Controls coccidiosis outbreaks in broiler production.
Bulk Trimethoprim Base Crystals
Pure trimethoprim free base in crystalline form for pharmaceutical compounding, under HTS 2933.59.22.00 as aromatic anti-infective. Used in custom antibiotic suspensions and tablets. Chemically defined pyrimidine compound meeting chapter purity standards.