1-(2-Aminothiazol-4-yl)ethan-1-one from Japan
1-(2-Aminothiazol-4-yl)ethan-1-one contains heterocyclic thiazole but classifies as amino-ketone under HTS 2922.39.5000 when oxygen function predominates over heterocycle. Antibiotic intermediate.
Duty Rate — Japan → United States
6.5%
Rate breakdown
9903.03.030%Articles the product of any country, as provided for in subdivision (aa)(ii) of U.S. note 2 to this subchapter
Import Tips
• Heterocycles scrutinized for Chapter 29 Note 5; provide NMR confirming keto tautomer
• Antibiotic intermediates face additional FDA scrutiny