High Purity Diethyl Ethylphosphonate 99.5%+ from China
Ultra-high purity diethyl ethylphosphonate (99.5%+) for pharmaceutical intermediate and specialty chemical synthesis. Falls under HTS 2931.43.00.00 as the specifically named non-halogenated organo-phosphorus compound per Chapter 29 definitions. Supplied in glass bottles for research applications.
Duty Rate — China → United States
21.2%
Rate breakdown
9903.03.0110%Except for products described in headings 9903.03.02–9903.03.11, articles the product of any country, as provided for in subdivision (aa) of U.S. note 2 to this subchapter
9903.88.157.5%Except as provided in headings 9903.88.39, 9903.88.42, 9903.88.44, 9903.88.47, 9903.88.49, 9903.88.51, 9903.88.53, 9903.88.55, 9903.88.57, 9903.88.65, 9903.88.66, 9903.88.67, 9903.88.68, or 9903.88.69, articles the product of China, as provided for in U.S. note 20(r) to this subchapter and as provided for in the subheadings enumerated in U.S. note 20(s)
Import Tips
• Include HPLC or GC purity certificates meeting ≥99.5% specification for verification
• Comply with FDA import requirements if declared for pharmaceutical intermediate use
• Use child-resistant packaging if destined for US laboratory/research end-use