Methylphosphonyl Difluoride
Methylphosphonyl difluoride (CH3P(O)F2) is a halogenated organo-phosphorus compound where a methyl group is directly linked to phosphorus with two fluorine atoms. It falls under HTS 2931.59.00.15 as an alkyl phosphonyl difluoride, specifically the methyl variant, meeting Chapter 29 requirements for separate chemically defined organo-inorganic compounds with halogen directly linked to phosphorus. Primarily used as a chemical intermediate in organophosphorus synthesis.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If containing arsenic or other non-halogen nonmetals
Other organo-inorganic compounds with additional heteroatoms beyond P-F-C linkage move to the residual 2931.90 category.
If classified primarily as halogenated hydrocarbon derivative
Customs may reclassify if methyl-fluorine bond dominates over phosphonyl function, per Chapter 29 numerical order rule.
If imported as aqueous solution for safety transport
Chapter Note (d) allows water-dissolved forms, but only if not rendered suitable for specific use beyond general chemical handling.
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Import Tips & Compliance
• Verify chemical purity and obtain Safety Data Sheets (SDS) compliant with TSCA and REACH for customs clearance
• Check CWC (Chemical Weapons Convention) export/import licenses as phosphonyl difluorides are List I chemicals
• Ensure proper UN-approved packaging for corrosive, toxic fluorinated compounds to avoid transport pitfalls
Related Products under HTS 2931.59.00.15
Ethylphosphonyl Difluoride
Ethylphosphonyl difluoride (C2H5P(O)F2) is an organo-inorganic compound featuring an ethyl alkyl chain attached to phosphorus with difluoride groups. Classified under HTS 2931.59.00.15 as it precisely matches the 'alkyl phosphonyl difluorides' specification for ethyl variants in halogenated organo-phosphorus derivatives. Used in pesticide synthesis and as a reagent in phosphorus chemistry.
Isopropylphosphonyl Difluoride
Isopropylphosphonyl difluoride ((CH3)2CHP(O)F2) contains a branched isopropyl group linked to the phosphonyl difluoride moiety. It qualifies for HTS 2931.59.00.15 as one of the explicitly named isopropyl alkyl phosphonyl difluorides in halogenated organo-phosphorus compounds. Critical precursor in nerve agent synthesis and specialty fluorophosphorus chemicals.
n-Propylphosphonyl Difluoride
n-Propylphosphonyl difluoride (CH3CH2CH2P(O)F2) features a straight-chain propyl group on the P(O)F2 structure. Falls squarely under HTS 2931.59.00.15 as the n-propyl variant of alkyl phosphonyl difluorides in the halogenated organo-phosphorus category. Employed in flame retardant precursor synthesis.
Methylphosphonyl Difluoride Stabilized Solution
Stabilized methylphosphonyl difluoride solution contains CH3P(O)F2 with added anticaking agent for safe transport. Permitted under HTS 2931.59.00.15 per Chapter Note (f) as the stabilizer is solely for preservation, maintaining classification as the pure chemically defined compound. Used in controlled laboratory reagent applications.
Ethylphosphonyl Difluoride 98% Technical Grade
Technical grade ethylphosphonyl difluoride at 98% purity with minor impurities typical of industrial production. Remains classified under HTS 2931.59.00.15 as Chapter 29(a) covers compounds 'whether or not containing impurities.' Essential for large-scale agrochemical manufacturing.