3507.90.20.00/Penicillin G Amidase Enzyme Powder/Japan

Penicillin G Amidase Enzyme Powder from Japan

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.

Duty Rate — Japan → 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

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Import Tips

• Obtain a detailed Certificate of Analysis (CoA) verifying the enzyme's activity and purity to satisfy FDA and CBP requirements for biotech imports

• Declare as 'Penicillin G Amidase' explicitly on commercial invoices to avoid misclassification into general enzyme categories

• Ensure cold chain documentation for refrigerated shipments, as improper storage can degrade enzyme activity and lead to customs holds