99% Pure Dimethyl Propylphosphonate Technical Grade from Canada
High-purity technical grade dimethyl propylphosphonate (>99%) used in pharmaceutical synthesis and as a flame retardant precursor. Falls under HTS 2931.42.00.00 due to its specific non-halogenated organo-phosphorus structure as per Chapter 29 notes.
Duty Rate — Canada → United States
13.7%
Rate breakdown
9903.05.2910%Except for products described in headings 9903.05.85–9903.05.93, articles the product of Canada, as provided for in U.S. note 52 to this subchapter
Import Tips
• Require analytical HPLC/GC reports for purity verification during customs; label as 'not for pesticide use' if applicable to avoid EPA scrutiny
• Check for stabilizer additions per Chapter note 2(f)