High Assay Dimethyl Phosphite 99.5% from Canada
Ultra-high purity 99.5% dimethyl phosphite for pharmaceutical intermediates falls under HTS 2920.21.00.00 as a chemically defined phosphite ester. Its precision purity supports sensitive reactions.
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
• Provide GMP-equivalent CoA for FDA-impacted imports; nitrogen purge packaging mandatory; avoid temperature >40°C in shipping