Triethyl Phosphite from Japan

Triethyl phosphite is a colorless liquid organophosphorus compound with the formula P(OCH2CH3)3, classified under HTS 2920.24.00.00 as a phosphite ester of an inorganic acid of nonmetal (phosphorous acid). It is a key reagent in organic synthesis for producing phosphonate ligands and flame retardants.

Duty Rate — Japan → United States

13.7%

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

Import Tips

Verify purity levels (typically >97%) via Certificate of Analysis to meet chemical import standards; ensure proper UN 2323 hazardous material labeling for transport; declare as pure compound to avoid mixture reclassification under Chapter 38