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.
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Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If primarily valued as filter media
Immobilized forms resembling centrifuge parts shift to Chapter 84 machinery components.
If other immobilized enzymes
Non-specific immobilized enzymes fall under dedicated immobilized enzyme subheading.
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Import Tips & Compliance
• Specify immobilization matrix in documentation to distinguish from pure enzymes and avoid parts classifications
• Comply with EPA biotech import permits if beads contain recombinant material
• Test for leaching stability to prevent reclassification as a composite chemical good
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.
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.
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.
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.