5-(2-Aminoethyl)-4-methylthiazole from Canada
Intermediate in thiamine synthesis featuring substituted aromatic thiazole ring with aminoethyl side chain. Classified HTS 2934.10.20.00 as principal thiazole heterocycle per Chapter 29 last-in-order rule. Chemically defined for pharmaceutical production.
Duty Rate — Canada → United States
16.5%
Rate breakdown
9903.05.2910%Section 301 (forced labor) — additional 10% ad valorem on products of Canada
Import Tips
• Reference to thiamine synthesis pathway supports heterocyclic classification
• GC-MS analysis verifying thiazole purity essential
• Distinguish from polymer precursors via molecular weight certification