Dipropyl-N,N-dipropyl phosphoramidate from Mexico
Dipropyl-N,N-dipropyl phosphoramidate uses n-propyl groups as the dialkyl substituents on both P and N atoms, fitting HTS 2929.90.50.20 exactly. This compound serves as an intermediate in the production of flame retardants and specialty polymers.
Duty Rate — Mexico → 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
9903.05.5510%Except for products described in headings 9903.05.85–9903.05.92 and 9903.05.94, articles the product of Mexico, as provided for in U.S. note 52 to this subchapter
Import Tips
• Confirm n-propyl vs isopropyl configuration via NMR spectra in supporting documentation
• Register with TSCA for commercial chemical import and maintain 90-day pre-manufacture notice if applicable
• Use temperature-controlled packaging to prevent decomposition during ocean freight transit