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
6.5%
Rate breakdown
9903.03.030%Articles the product of any country, as provided for in subdivision (aa)(ii) of U.S. note 2 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