Industrial Grade Butyl Methylphosphinate 98% from Mexico
High-purity (98%) butyl methylphosphinate used in polymer flame retardant synthesis, specifically classified under HTS 2931.49.0015 as a non-halogenated organo-phosphorus derivative. Meets chapter note requirements for separate chemically defined compounds.
Duty Rate — Mexico → United States
110%
Rate breakdown
9903.04.6096.3%Except as provided in heading 9903.04.61, patented pharmaceutical articles as provided for in subdivisions (c) and (d) of U.S. note 40 to this subchapter
9903.05.5510%Except for products described in headings 9903.05.85–9903.05.92 and 9903.05.94, articles the product of Mexico, as provided for in U.S. note 52 to this subchapter
Import Tips
• Include REACH/ TSCA registration numbers on commercial invoice; test for heavy metal impurities that could trigger 2931.00 classification
• Use UN-approved phosphorous compound packaging