Methylphosphonic Acid (99% Purity) from Japan
Methylphosphonic acid is a non-halogenated organo-phosphorus compound with the formula CH3P(O)(OH)2, classified under HTS 2931.44.00.00 as a separate chemically defined organic compound containing phosphorus directly linked to carbon. It serves as a key intermediate in synthesizing flame retardants and herbicides.
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
• Verify purity certificate and chemical analysis to confirm classification under 2931.44; ensure SDS and proper UN packaging for Hazard Class 8 corrosive material
• Avoid misclassification as pesticide formulations which fall outside Chapter 29