N-Acetyl-L-Alanine from Canada
N-Acetyl-L-Alanine is an acetyl protected form of L-alanine used in peptide synthesis and research. It remains classified as alanine under HTS 2922.49.4910 since simple acylation doesn't change the principal amino acid character.
Duty Rate — Canada → United States
110%
Rate breakdown
9903.04.6095.8%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
9903.05.2910%Except for products described in headings 9903.05.85–9903.05.93, articles the product of Canada, as provided for in U.S. note 52 to this subchapter
Import Tips
• Provide NMR/HPLC confirming >95% purity as chemically defined compound
• Research chemical exemption from some FDA rules but TSCA registration needed
• Distinguish from multi-protected amino acids that may go to 2924 carboxyamide heading