Imidazole pH Indicator Base from Japan
Imidazole employed as base for custom pH indicators in analytical chemistry, under HTS 2933.29.60.00 for its heterocyclic nitrogen structure. Titrates in acidic-basic transitions.
Duty Rate — Japan → United States
27.5%
Rate breakdown
9903.04.6215%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
• Ensure no added colorants violating chapter note (g); EPIRB declaration for lab use; purity >98% to avoid mixture status