Thiamine Tetrahydrofurfuryl Disulfide (TTFD) from United States
TTFD (thiamine tetrahydrofurfuryl disulfide) is an allithiamine-type derivative of vitamin B1 with superior transdermal absorption properties. It is used primarily as a vitamin derivative in nutritional supplements. This product is classified under tariff item 2936.22.00.
Duty Rate — United States → Canada
0%
Import Tips
• Ensure the product is labeled as a vitamin B1 derivative for nutritional use
• Provide a Certificate of Analysis to confirm the chemical structure and purity
• Check if the product is subject to any Canadian supplement regulations