O-Isopropyl N-(Dimethylamino)ethylidene Phosphoramidofluoridate from China
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 — China → United States
44%
Rate breakdown
9903.88.0325%Except as provided in headings 9903.88.13, 9903.88.18, 9903.88.33, 9903.88.34, 9903.88.35, 9903.88.36, 9903.88.37, 9903.88.38, 9903.88.40, 9903.88.41, 9903.88.43, 9903.88.45, 9903.88.46, 9903.88.48, 9903.88.56, 9903.88.64, 9903.88.66, 9903.88.67, 9903.88.68, or 9903.88.69, articles the product of China, as provided for in U.S. note 20(e) to this subchapter and as provided for in the subheadings enumerated in U.S. note 20(f)
9903.05.3112.5%Section 301 (forced labor) — additional 12.5% ad valorem on products of China
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