Phosphonamidofluoridic Acid, Methyl-, Bis(diethylamino)methylene Ester from Canada
CAS-listed pure compound [exact nomenclature variant] used as reagent in organophosphorus chemistry research. Classified precisely under HTS 2931.59.00.35 as the designated halogenated organo-phosphorous derivative. Excluded from mixtures or preparations per Chapter 29 notes.
Duty Rate — Canada → United States
13.7%
Rate breakdown
9903.05.2910%Section 301 (forced labor) — additional 10% ad valorem on products of Canada
Import Tips
• Lab quantities (<100g) still require CWC declaration; bulk imports need additional ATF oversight
• Validate NMR spectrum matches reference to prevent customs laboratory challenge
• Avoid glass ampoules; use fluoropolymer-lined containers to prevent HF generation