Isopropylphosphonyl Difluoride from Japan
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.
Duty Rate — Japan → United States
12.5%
Rate breakdown
9903.05.4912.5%Section 301 (forced labor) — Japan (col1 rate < 12.5 percent): MFN < 12.5% → total duty capped at 12.5%
Import Tips
• Provide OPPTS 830 testing data for customs; failure to declare toxicity leads to 100% exam rates
• Secure BIS export license equivalents for import; dual-use chemical with strict end-use monitoring
• Avoid glass packaging—use PFA/PTFE due to HF generation risk, preventing common DOT violation