Methylphosphonyl Difluoride Mixture from Mexico
Stabilized mixture of methylphosphonyl difluoride employed in advanced materials synthesis and as a fluorophosphorus reagent. Meets HTS 3824.99.93.61 criteria with phosphorus-methyl bonding exclusivity. Highly reactive, thus supplied in inert carrier.
Duty Rate — Mexico → United States
15%
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
• Requires DEA precursor chemical registration if thresholds met
• Special packaging for corrosive fluorides; DOT exemption letters often needed
• Avoid customs holds by pre-submitting chemical abstract identifiers