Ethyl 2-(2-aminothiazol-4-yl)-2-hydroxyiminoacetate from China
Hydroxyimino variant of aminothiazole intermediate listed in HTS 2934.10.70.00. Synthetic precursor for beta-lactam antibiotics with unfused thiazole ring structure. Pure compound classification under Chapter 29 heterocyclic provisions.
Duty Rate — China → United States
12.5%
Rate breakdown
9903.05.3112.5%Except for products described in headings 9903.05.85–9903.05.92, articles the product of China, as provided for in U.S. note 52 to this subchapter
Import Tips
• Include chiral purity analysis if enantiomerically pure for pharmaceutical grade
• Use temperature-controlled shipping for hydroxyimino stability per safety transport notes
• Reference US DMF if registered for drug master file compliance