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tert-Butyl-(Methylpropylamino)ethylidene Phosphonamidic Fluoride from Japan

Fluorophosphonamidate featuring tert-butyl (C4) on P and mixed methyl/n-propyl on nitrogen, all ≤C10, precisely matching HTS 2931.59.0030 criteria. Serves as building block for nerve agent analogs or therapeutic phosphonates in medicinal chemistry. The specific P-N=alkylidene-fluoride motif defines classification.

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

May require DEA import permit if listed chemical precursor; check Chemical Diversion list annually

Include synthetic route and purity (>98%) specs to justify 2931 classification vs mixtures