Thiazole-4-Carboxylic Acid Ethyl Ester from Japan
This aromatic thiazole derivative with ester functionality meets HTS 2934.10.10.00 criteria per U.S. note 3. Serves as intermediate for pharmaceutical and agrochemical synthesis.
Duty Rate — Japan → United States
21%
Rate breakdown
9903.04.628.5%Patented pharmaceutical articles that are the product of Japan, of a European Union member country, of South Korea, of Switzerland, or of Liechtenstein as provided for in subdivisions (c) and (f) of U.S. note 40 to this subchapter
9903.05.4912.5%Except for products described in headings 9903.05.85–9903.05.92, articles the product of Japan, with an ad valorem (or ad valorem equivalent) rate of duty under column 1 less than 12.5 percent, as provided for in U.S. note 52 to this subchapter
Import Tips
• Provide NMR/GC-MS spectra confirming thiazole ring integrity and ester purity
• Use HDPE drums with nitrogen blanketing for oxidative-sensitive compounds
• Include downstream synthesis declaration to justify chemical intermediate status