2-Acetylamino-5-nitrothiazole from Mexico
This nitro-substituted aromatic thiazole with acetamido group serves as veterinary pharmaceutical intermediate. The unfused thiazole ring with nitro derivative qualifies for HTS 2934.10.20.00 per Chapter 29 note on halogenated/nitrated derivatives. Chemically defined organic compound.
Duty Rate — Mexico → United States
110%
Rate breakdown
9903.04.6093.5%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
9903.05.5510%Except for products described in headings 9903.05.85–9903.05.92 and 9903.05.94, articles the product of Mexico, as provided for in U.S. note 52 to this subchapter
Import Tips
• NMR spectrum confirming nitro-thiazole substitution pattern required
• Declare as 'vet pharma intermediate' vs finished animal drug product
• Stability data prevents reclassification as stabilized preparation under note (f)