Recombinant Penicillin G Acylase Lyophilized
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.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If industrial enzymes from microbial sources
Microbial industrial enzymes may fall under 3507.90.65 if not explicitly named as Penicillin G amidase.
If supplied as immobilized on a carrier
Immobilized enzyme preparations with vitamin-like structures can shift to Chapter 29 for organic compounds.
If imported as bioreactor components
If integrated into machinery parts for continuous processing, classified as industrial machinery rather than pure enzymes.
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Import Tips & Compliance
• 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
Related Products under HTS 3507.90.20.00
Penicillin G Amidase Enzyme Powder
Penicillin G amidase is a purified enzyme used in the biopharmaceutical industry to hydrolyze penicillin G into 6-aminopenicillanic acid (6-APA), a key intermediate for semi-synthetic antibiotics. This powder form is specifically classified under HTS 3507.90.20.00 as it matches the description of Penicillin G amidase, a prepared enzyme not elsewhere specified.
Penicillin G Amidase 100,000 U/g Preparation
A high-activity (100,000 units per gram) preparation of Penicillin G amidase in stabilized powder form for large-scale fermentation processes in antibiotic production. HTS 3507.90.20.00 applies specifically to this named enzyme, distinct from general dextrins or hardened proteins per chapter exclusions.
Immobilized Penicillin G Amidase Beads
Penicillin G amidase immobilized on agarose or silica beads for continuous flow biocatalysis in pharmaceutical manufacturing. Still classified under HTS 3507.90.20.00 as the principal enzyme is specifically Penicillin G amidase, not reclassified by immobilization.
PenG Amidase Solution 50% Glycerol Stabilized
Liquid formulation of Penicillin G amidase stabilized in 50% glycerol for cold storage and easy dispensing in lab-scale antibiotic synthesis. HTS 3507.90.20.00 covers this specific amidase preparation, excluded from Chapter 34 washing preps or Chapter 30 medicaments.