Thiamine Tetrahydrofurfuryl Disulfide (TTFD) from Mexico
Thiamine tetrahydrofurfuryl disulfide is an allithiamine-type derivative of vitamin B1 with superior transdermal absorption properties. It is a chemically defined organic compound that functions primarily as a vitamin B1 derivative, qualifying for tariff item 2936.22.00.
Duty Rate — Mexico → Canada
0%
Import Tips
• Ensure the product is labeled as a vitamin B1 derivative for nutritional use
• Have a certificate of analysis and safety data sheet
• Check if the product requires a Natural Product Number (NPN) if sold as a supplement