Dibutyl Phosphite from Japan
Dibutyl phosphite is a reactive intermediate for flame retardants and adhesives. Classified under HTS 2920.29.00.00 as a dialkyl phosphite ester.
Duty Rate — Japan → United States
12.5%
Rate breakdown
9903.05.4912.5%Except for products described in headings 9903.05.85–9903.05.92, articles the product of Japan, with an ad valorem (or ad valorem equivalent) rate of duty under column 1 less than 12.5 percent, as provided for in U.S. note 52 to this subchapter
Import Tips
• P-H acidity documentation distinguishes from neutral phosphite triesters
• Corrosivity test data required for steel drum packaging approval
• Avoid water contamination; hydrolysis products may change classification