L-Serine from Mexico
L-Serine is a polar amino acid in cell culture media and moisturizers. Classified HTS 2922.49.80.00 for hydroxy amino-acids with single function.
Duty Rate — Mexico → United States
110%
Rate breakdown
9903.04.6096.3%Except as provided in heading 9903.04.61, patented pharmaceutical articles as provided for in subdivisions (c) and (d) of U.S. note 40 to this subchapter
9903.05.5510%Except for products described in headings 9903.05.85–9903.05.92 and 9903.05.94, articles the product of Mexico, as provided for in U.S. note 52 to this subchapter
Import Tips
• Endotoxin testing for biotech; sterile certifications; media compatibility docs