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.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If stabilizer renders suitable for specific end-use
Chapter Note (g) exclusion if additives make product application-specific rather than general chemical.
If for other phosphine derivatives
Different P-C linkage types segregated within 2931 subheadings.
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Import Tips & Compliance
• Declare stabilizer <1% and purpose (transport only) to avoid 3824 mixture reclassification
• Use DOT SP 149 for stabilized fluorides; improper marking leads to carrier refusal
• Provide stabilizer composition to CBP Chemistry Lab if requested during exam
Related Products under HTS 2931.59.00.15
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.
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.
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.