N-Acetyl-L-Alanine from Japan
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 — Japan → United States
23.3%
Rate breakdown
9903.04.6210.8%Patented pharmaceutical articles that are the product of Japan, of a European Union member country, of South Korea, of Switzerland, or of Liechtenstein as provided for in subdivisions (c) and (f) of U.S. note 40 to this subchapter
9903.05.4912.5%Except for products described in headings 9903.05.85–9903.05.92, articles the product of Japan, with an ad valorem (or ad valorem equivalent) rate of duty under column 1 less than 12.5 percent, 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