DL-Alanine from Mexico
DL-Alanine is the racemic mixture of alanine used in biochemical research, cell culture media, and as a food additive. Falls under HTS 2922.49.49 as other amino acids with oxygen-function amino structure. Non-essential amino acid for synthetic biology applications.
Duty Rate — Mexico → United States
14.2%
Rate breakdown
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
• Specify racemic (DL) vs L-form in documentation; COA must include NMR or polarimetry data
• For research use, no FDA notification needed but TSCA registration required for lab chemicals
• Avoid over-declaring purity to prevent scrutiny as pharmaceutical intermediate