Distilled Diethyl Phosphite 99.5% Purity from Mexico
Vacuum-distilled diethyl phosphite at 99.5% purity is a separate chemically defined compound. High purity does not affect classification under heading 29.20, which covers phosphite esters regardless of purity level.
Duty Rate — Mexico → Canada
0%
Import Tips
• Document the distillation process and purity to support the classification
• Provide the CAS number and a certificate of analysis
• Ensure the product is not considered a pharmaceutical intermediate requiring additional permits