Diethylamino-ethylidene phosphonamidic fluoride hydrochloride salt from Mexico
A protonated salt form of N-(diethylamino)ethylidene phosphonamidic fluoride (both alkyl groups ≤C10), classified under HTS 2929.90.50.30 as it matches the exact description including corresponding alkylated or protonated salts. This compound serves as a reagent in organic synthesis, particularly for phosphoramidate derivatives used in pesticides or flame retardants. Chapter 29 notes confirm salts of nitrogen-function compounds stay with the parent organic structure.
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 protonation details in chemical documentation to validate salt classification; check for REACH/ TSCA pre-registration if destined for chemical synthesis; ensure packaging meets UN standards for corrosive fluorides