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4-Methylthiazole Pharmaceutical Grade from Mexico

4-Methylthiazole, an aromatic heterocyclic compound with unfused thiazole ring, qualifies under HTS 2934.10.10.00. Used as building block in API synthesis and flavor chemistry.

Duty Rate — Mexico → United States

16.5%

Rate breakdown

9903.05.5510%Section 301 (forced labor) — additional 10% ad valorem on products of Mexico

Import Tips

Specify 'pharmaceutical grade' with residual solvent analysis per USP <467>

Pungent odor requires sealed secondary containment and odor-neutralizing packaging

Provide flavor/fragrance end-use letter if avoiding food additive registration