Dipropylamino-butylidene phosphonamidic fluoride methyl salt from Canada
Alkylated salt of N-(dipropylamino)C4-alkylidene phosphonamidic fluoride, with all groups ≤C10, matching HTS 2929.90.50.30 including salts. Used in fine chemical production for herbicides. Chapter notes prioritize nitrogen function classification.
Duty Rate — Canada → United States
6.5%
Rate breakdown
9903.03.030%Articles the product of any country, as provided for in subdivision (aa)(ii) of U.S. note 2 to this subchapter
Import Tips
• Document alkylation specifics to distinguish from protonated salts; comply with EPA FIFRA if agrochemical intermediate; test for impurities that could shift classification