Polymyxin B Sulfate from Mexico
Polymyxin B sulfate, derived from Paenibacillus polymyxa bacteria, is a natural cationic polypeptide antibiotic for gram-negative infections. Falls under HTS 2941.90.10 as a natural antibiotic, chemically defined per Chapter 29 scope.
Duty Rate — Mexico → United States
0%
Rate breakdown
9903.05.860%Universal product exemption (U.S. note 52(b))
Import Tips
• FDA prior notice required; sulfate salt classifies with base per note 5(C)(1); test for endotoxin levels pre-shipment