Sulfadiazine
Sulfadiazine is a synthetic antibacterial sulfonamide drug containing a pyrimidine ring in its structure, used primarily for treating infections like toxoplasmosis and urinary tract infections. It falls under HTS 2933.59.36.00 as an aromatic anti-infective agent with a nitrogen-containing heterocyclic pyrimidine ring. This classification applies to its chemically defined structure meeting chapter 29 notes for separate organic compounds.
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Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If not specifically listed as a drug
Non-drug pyrimidine compounds fall earlier in the 2933.59 subheading before the drugs provision.
If imported as finished dosage form like tablets
Fully formulated medicaments shift to Chapter 30, excluding bulk active ingredients.
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Import Tips & Compliance
• Verify FDA approval and provide Certificate of Analysis for purity; ensure proper pharmaceutical labeling per 21 CFR; avoid misclassification by confirming pyrimidine structure via COA
Related Products under HTS 2933.59.36.00
Sulfamethazine
Sulfamethazine is a sulfonamide antibiotic with a heterocyclic pyrimidine ring, used in veterinary medicine for bacterial infections in livestock. Classified under HTS 2933.59.36.00 due to its aromatic structure and role as an anti-infective agent per chapter notes on nitrogen hetero-atom compounds. It qualifies as a separate chemically defined organic compound.
Trimethoprim
Trimethoprim is a dihydrofolate reductase inhibitor with a pyrimidine ring, used as an anti-infective for urinary tract and respiratory infections, often combined with sulfamethoxazole. It is classified in HTS 2933.59.36.00 as an aromatic anti-infective heterocyclic compound containing nitrogen hetero-atoms only. Meets chapter note (a) for separate chemically defined compounds.
Sulfadimethoxine
Sulfadimethoxine is a long-acting sulfonamide with a methoxy pyrimidine structure, used as an anti-infective in veterinary applications for poultry and cattle. Falls under HTS 2933.59.36.00 for its aromatic anti-infective properties and pyrimidine ring per chapter definitions. Classified as a pure organic compound without excluded additives.
Pyrimethamine
Pyrimethamine is an antifolate drug with a pyrimidine ring, used for malaria prophylaxis and toxoplasmosis treatment as an anti-infective agent. HTS 2933.59.36.00 applies to its aromatic heterocyclic structure with nitrogen hetero-atoms, aligning with chapter notes for drugs. It is imported as a bulk active pharmaceutical ingredient.
Sulfamerazine
Sulfamerazine is a short-acting sulfonamide antibiotic featuring a pyrimidine ring, used historically for streptococcal infections. Classified in HTS 2933.59.36.00 as an aromatic anti-infective with nitrogen heterocyclic structure per chapter 29 scope. Represents a pure, chemically defined organic compound.
Sulfisoxazole
Sulfisoxazole is a sulfonamide anti-infective with an isoxazole-substituted pyrimidine-like structure, used for urinary and eye infections. It fits HTS 2933.59.36.00 under aromatic anti-infectives with pyrimidine rings, adhering to chapter notes on nitrogen hetero-atoms. Bulk form excludes finished medicaments.