Recombinant Penicillin G Acylase Lyophilized from Japan
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 — Japan → United States
12.5%
Rate breakdown
9903.05.4912.5%Section 301 (forced labor) — Japan (col1 rate < 12.5 percent): MFN < 12.5% → total duty capped at 12.5%
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