Ethyl Methylphosphonite Preparation from Canada
Industrial preparation mainly consisting of ethyl methylphosphonite used in organophosphorus synthesis for agrochemicals and flame retardants. It matches HTS 3824.99.93.61 as the core chemical features phosphorus bonded to an ethyl group with no further carbon chain. This mixture form ensures stability for shipping and handling.
Duty Rate — Canada → United States
65%
Rate breakdown
9903.03.1450%Articles the product of Canada as provided in subdivision (b)(3) of U.S. note 51 to this subchapter
9903.05.2910%Except for products described in headings 9903.05.85–9903.05.93, articles the product of Canada, as provided for in U.S. note 52 to this subchapter
Import Tips
• Declare exact alkyl group (ethyl) in invoices and attach NMR spectra if requested for bonding verification
• Register under Chemical Facility Anti-Terrorism Standards (CFATS) if volume exceeds thresholds due to precursor potential