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.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If purity below pharmaceutical grade or labeled for non-medicinal applications
Lower purity or industrial-grade sulfamethazine classifies under 'other' drugs rather than specific anti-infective designation.
If supplied as a stabilized mixture with anticaking agents exceeding Chapter 29 note g limits
Mixtures with additives that impart specific properties beyond safety/transport fall into Chapter 38 as chemical preparations.
If imported in bulk capsules or measured doses for veterinary dispensing
Medications in measured doses, even veterinary, shift to Chapter 30 as bulk medicinal preparations.
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Import Tips & Compliance
• Include FDA Drug Master File reference and third-party lab testing for identity/potency; use tamper-evident packaging to prevent contamination claims at customs
• Avoid common error: declaring without CAS number (57-68-1), causing delays in verification
Related Products under HTS 2935.90.30.00
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.
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.