L-Serine from Canada
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 — Canada → United States
13.7%
Rate breakdown
9903.05.2910%Section 301 (forced labor) — additional 10% ad valorem on products of Canada
Import Tips
• Endotoxin testing for biotech; sterile certifications; media compatibility docs