L-Histidine from Mexico
L-Histidine is an essential amino acid with an imidazole ring and a carboxylic acid oxygen function. It is a separate chemically defined organic compound classified under heading 29.22. Used in cell culture media and as a precursor for antihistamines.
Duty Rate — Mexico → Canada
0%
Import Tips
• Confirm the product is not a peptide
• Provide the CAS number and purity certificate
• If used in food or supplements, verify Health Canada requirements