N-Methyl-N-ethylphosphoramidic difluoride from Japan
A mixed methyl-ethyl N,N-dialkyl phosphoramidic dihalide using fluoride halogens, under HTS 2929.90.50.18. Employed in fluorinated polymer synthesis and as a fluorinating agent. The dihalide nitrogen function places it specifically in this subheading per Chapter 29 definitions.
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
• Specify halide type (F vs Cl) in invoices; difluorides still qualify under dihalides
• Use fluoropolymer-compatible containers to prevent reaction during transport
• Verify no coordination with metals—per note (C)(3), cleaves to organic fragments for classification