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.
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Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If piperazine ring emphasized over pyrimidine
Dual-ring heterocyclics classified by principal ring system in heading order.
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Import Tips & Compliance
• Provide polymorphic form certificate (Form I most common) for IP validation
• Ensure <0.5% water content to prevent hydrate formation reclassification
• Declare crystal habit (prismatic) which affects tableting and potential dosage form shifts
Related Products under HTS 2933.59.22.00
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.
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.