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
19%
Rate breakdown
9903.05.3112.5%Section 301 (forced labor) — additional 12.5% ad valorem on products of China
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