N,N-Diethylphosphoramidic dichloride from Canada
A dialkyl phosphoramidic dihalide with ethyl groups on nitrogen and two chlorine atoms, fitting HTS 2929.90.50.18 as 'other' N,N-dialkyl (methyl, ethyl, n-propyl or isopropyl) phosphoramidic dihalides. Used primarily in synthesis of flame retardants and insecticides. Its precise chemical definition aligns with Chapter 29 heading for compounds with other nitrogen functions.
Duty Rate — Canada → United States
110%
Rate breakdown
9903.04.6093.5%Except as provided in heading 9903.04.61, patented pharmaceutical articles as provided for in subdivisions (c) and (d) of U.S. note 40 to this subchapter
9903.05.2910%Except for products described in headings 9903.05.85–9903.05.93, articles the product of Canada, as provided for in U.S. note 52 to this subchapter
Import Tips
• Submit NMR or GC-MS spectra to confirm structure matching the subheading; impurities must not exceed Chapter 29 note (a) thresholds
• Declare as hazardous material under DOT 49 CFR; use UN-approved packaging for corrosive liquids
• Watch for reclassification if dissolved in solvents beyond transport needs—per note (e), solutions must be solely for safety