5-(2-Aminoethyl)-4-methylthiazole from Japan
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 — Japan → United States
12.5%
Rate breakdown
9903.05.4912.5%Section 301 (forced labor) — Japan (col1 rate < 12.5 percent): MFN < 12.5% → total duty capped at 12.5%
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