2934.10.90.00/2-Aminothiazole/Mexico

2-Aminothiazole from Mexico

2-Aminothiazole is a heterocyclic compound containing an unfused thiazole ring with an amino group at the 2-position, used primarily as an intermediate in pharmaceutical synthesis. It falls under HTS 2934.10.90.00 as a thiazole ring compound that is chemically defined but not specifically enumerated elsewhere in the subheading. This classification aligns with Chapter 29 notes for separate chemically defined organic compounds containing thiazole structures.

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

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Import Tips

• Provide detailed chemical analysis (NMR, MS) confirming thiazole structure and purity to avoid misclassification under other heterocyclic headings

• Include Safety Data Sheets (SDS) and CAS number (96-50-4) on commercial invoice for CBP verification

• Ensure proper hazardous material labeling if shipped in quantities exceeding exemption limits to prevent delays