L-Phenylalanine from Canada
L-Phenylalanine is an essential aromatic amino acid explicitly named in HTS 2922.49.10.00, featuring both amino and carboxylic acid groups. Widely used in nutritional supplements, pharmaceuticals, and as a sweetener precursor (aspartame). Meets criteria for oxygen-function amino-acids.
Duty Rate — Canada → United States
5.8%
Rate breakdown
9903.03.030%Articles the product of any country, as provided for in subdivision (aa)(ii) of U.S. note 2 to this subchapter
Import Tips
• Specify L-enantiomer with optical rotation data (CAS 63-91-2)
• For food use, provide Kosher/Halal certs and amino acid purity >98.5%
• Segregate from D-isomer to avoid racemic mixture reclassification