Trimethoprim Hydrochloride API from Mexico
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.
Duty Rate — Mexico → 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
• Include DMF reference number and FDA import alert screening; human drugs face stricter biopharma regs
• Test for HCl content (18-19%) to confirm salt form vs free base reclassification
• Use temperature-controlled shipping (<25°C) to maintain stability certificate validity