Sulfamethoxazole USP from China

Sulfamethoxazole is a synthetic bacteriostatic sulfonamide antibiotic used primarily as an anti-infective agent against gram-positive and gram-negative bacteria. It falls under HTS 2935.90.4800 as a sulfonamide classified as an anti-infective drug, typically used in combination therapies like co-trimoxazole. This chemically defined organic compound meets Chapter 29 note (a) for separate sulfonamides.

Duty Rate — China → United States

6.5%

Rate breakdown

9903.03.030%Articles the product of any country, as provided for in subdivision (aa)(ii) of U.S. note 2 to this subchapter

Import Tips

Provide FDA Drug Master File (DMF) and Certificate of Analysis confirming USP purity and anti-infective pharmacological action

Include detailed chemical structure documentation to verify sulfonamide classification under Chapter 29 notes

Avoid misclassification as finished dosage forms; ensure import as bulk API only to prevent Chapter 30 reclassification

Sulfamethoxazole USP from China — Import Duty Rate | HTS 2935.90.48.00