99% Pure Trimethyl Phosphite from Mexico
High-purity trimethyl phosphite (99%) used in fine chemical synthesis for agrochemicals and polymers. Falls under HTS 2920.23.00.00 as an ester of phosphorous acid without halogenation or other modifications.
Duty Rate — Mexico → United States
13.7%
Rate breakdown
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
• Provide GC-MS analysis confirming trimethyl phosphite content to avoid reclassification as mixture
• Label with GHS pictograms for flammable liquid and toxic hazards; ensure DOT-compliant shipping papers
• Check EU REACH compliance if transshipping, as phosphites require registration