High-Purity Ethoxyquin USP Grade from China
Pharmaceutical-grade ethoxyquin (>98% purity) meeting USP standards for use as reference standard and research chemical. As a chemically pure quinoline compound, classified HTS 2933.49.10.00 regardless of high purity. Used in analytical labs and veterinary research.
Duty Rate — China → United States
112.5%
Rate breakdown
9903.04.6093.5%Except as provided in heading 9903.04.61, patented pharmaceutical articles as provided for in subdivisions (c) and (d) of U.S. note 40 to this subchapter
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 USP certificate and CAS verification; may require DEA import permit if veterinary pharmaceutical intermediate
• Pitfall: research chemicals often held for end-use certification