Prosultiamine Vitamin B1 Derivative from Canada
Prosultiamine is a prodrug ester of thiamine with high lipid solubility for neurological applications. Falls under HTS 2936.22.00.00 as a derivative primarily used as vitamin B1 in therapeutics. Japanese pharmacopeia standard for B1 deficiency.
Duty Rate — Canada → United States
100%
Rate breakdown
9903.04.60100%Except as provided in heading 9903.04.61, patented pharmaceutical articles as provided for in subdivisions (c) and (d) of U.S. note 40 to this subchapter
9903.05.860%Articles provided for in subdivision (b) of U.S. note 52 to this subchapter
Import Tips
• NADA filing required if veterinary neurological use intended
• Provide hydrolysis rate data showing thiamine release profile
• Separate from cosmeceutical shipments to avoid Chapter 33 scrutiny