O-Isopropyl N-(Dimethylamino)ethylidene Phosphoramidofluoridate from Mexico
This cyclohexyl-equivalent isopropyl derivative features the exact O-alkyl (≤C10), N-dialkylamino alkylidene phosphoramidofluoridate structure defined in HTS 2929.90.50.40. It serves as a synthetic intermediate in pharmaceutical chemistry.
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
• Include NMR and mass spectrometry data to confirm structure matches tariff description precisely
• Register with Chemical Weapons Convention authorities for quantities exceeding 100g
• Package in UN-approved fluoropolymer containers to prevent hydrolysis during transport