Sulfamethazine Sodium Salt
Sulfamethazine sodium is the sodium salt form of sulfamethazine, a synthetic sulfonamide antibiotic used primarily in veterinary medicine for treating bacterial infections in livestock. It falls under HTS 2935.90.30.00 as a sulfonamide classified as an anti-infective drug, specifically sulfamethazine, meeting Chapter 29 requirements for chemically defined organic compounds with sulfur directly linked to carbon. This form enhances solubility for easier administration in animal feed or injections.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If imported as a bulk chemical intermediate not for direct medicinal use
Sulfamethazine used solely as a synthetic intermediate falls under 'other' sulfonamides rather than the specific anti-infective drugs subheading.
If formulated as a dosage form like tablets or powder for retail veterinary sale
Finished antibiotics in dosage forms are classified in Chapter 29 heading 2941 for antibiotics, not as pure chemical compounds.
If pre-mixed into animal feed premix at concentrations typically <0.1%
When incorporated into prepared animal feed, it moves to Chapter 23 as medicated feed rather than pure pharmaceutical compound.
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Import Tips & Compliance
• Verify FDA veterinary drug approval and provide Certificate of Analysis confirming purity >98%; ensure proper labeling as 'for veterinary use only' to avoid human drug classification
• Common pitfall: misdeclaring as generic sulfonamide without specifying sulfamethazine, leading to wrong subheading
Related Products under HTS 2935.90.30.00
Sulfamethazine Base Powder USP
Pharmaceutical grade sulfamethazine base powder meeting USP standards for purity, used in compounding veterinary medications against respiratory and enteric bacterial infections in swine and cattle. Classified under HTS 2935.90.30.00 as the specific sulfonamide anti-infective agent sulfamethazine per Chapter 29 notes for separate chemically defined compounds. Typically imported in 25kg drums for further formulation.
Sulfadimidine BP Veterinary Grade
Sulfadimidine (alternative name for sulfamethazine) meeting British Pharmacopoeia standards, imported as white crystalline powder for poultry coccidiosis and bacterial infections treatment. Falls under HTS 2935.90.30.00 as the sulfonamide drug sulfamethazine, an anti-infective agent per the tariff description and Chapter 29 chemical definition. Commonly used in drinking water medication systems for broiler chickens.
Sterile Sulfamethazine Injectable Solution Concentrate
12.5% sterile sulfamethazine sodium solution concentrate for veterinary intramuscular/subcutaneous injection in cattle for bacterial pneumonia. While a solution, it qualifies under HTS 2935.90.30.00 per Chapter 29 note (d) for sulfamethazine products dissolved in water for safety/transport. Supplied in 100ml multi-dose vials for farm use.
Sulfamethazine Bolus Tablets API
Granular sulfamethazine active pharmaceutical ingredient specifically manufactured for compression into large veterinary bolus tablets administered to ruminants. Classified under HTS 2935.90.30.00 as bulk sulfamethazine anti-infective drug substance before final tableting. Particle size optimized for uniform tablet dissolution in animal digestive systems.