Recombinant Penicillin G Acylase Lyophilized from Mexico
This lyophilized (freeze-dried) recombinant form of Penicillin G acylase, produced via E. coli expression, is used for industrial biotransformation of beta-lactam antibiotics. Classified under HTS 3507.90.20.00 due to its specific identity as Penicillin G amidase, excluded from other chapters per notes.
Duty Rate — Mexico → United States
10%
Rate breakdown
9903.03.0110%Except for products described in headings 9903.03.02–9903.03.11, articles the product of any country, as provided for in subdivision (aa) of U.S. note 2 to this subchapter
Import Tips
• Provide biotech origin documentation (e.g
• GMO status if recombinant) to comply with USDA APHIS biotech regulations
• Label shipments with UN number for biological substances if applicable, and include stability data to prevent inspection delays
• Verify enzyme specificity via lot-specific assays, as CBP may test for correct classification against generic enzymes