Thioguanine from Japan
Thioguanine is a guanine analog with thiopurine structure used as antileukemic drug featuring aromatic heterocyclic rings. It qualifies for HTS 2934.99.30.00 classification as a pharmaceutical drug compound.
Duty Rate — Japan → United States
15%
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
9903.05.900%Articles of aluminum, of steel or of copper or derivative aluminum or steel articles; passenger vehicles (sedans, sport utility vehicles, crossover utility vehicles, minivans and cargo vans) and light trucks; parts of passenger vehicles (sedans, sport utility vehicles, crossover utility vehicles, minivans and cargo vans) and light trucks; medium- and heavy-duty vehicles; parts of medium- and heavy-duty vehicles; wood products; patented pharmaceutical articles; and semiconductor articles, as provided in subdivision (f) of U.S. note 52 to this subchapter
Import Tips
• Document insolubility profile and recommend micronization for bioavailability enhancement
• Provide heavy metals testing results below 10 ppm per USP requirements
• Include anaerobic packaging specifications to prevent oxidation during transit