Thiothiamine Hydrochloride from Canada
Thiazole-containing vitamin B1 derivative explicitly listed under HTS 2934.10.70.00. Used in nutritional supplements and pharmaceutical formulations as thiamine analog. Classifies as chemically defined heterocyclic salt per Chapter 29 note on salts.
Duty Rate — Canada → United States
10%
Rate breakdown
9903.05.2910%Section 301 (forced labor) — additional 10% ad valorem on products of Canada
Import Tips
• Provide vitamin analog certification and USP/NF reference standards
• Declare hydrochloride salt content precisely for accurate duty assessment
• Include stability studies for light-sensitive thiazole structure