1-(2-Aminothiazol-4-yl)ethan-1-one from China
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 — China → United States
31.5%
Rate breakdown
9903.88.0325%Except as provided in headings 9903.88.13, 9903.88.18, 9903.88.33, 9903.88.34, 9903.88.35, 9903.88.36, 9903.88.37, 9903.88.38, 9903.88.40, 9903.88.41, 9903.88.43, 9903.88.45, 9903.88.46, 9903.88.48, 9903.88.56, 9903.88.64, 9903.88.66, 9903.88.67, 9903.88.68, or 9903.88.69, articles the product of China, as provided for in U.S. note 20(e) to this subchapter and as provided for in the subheadings enumerated in U.S. note 20(f)
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