Phosphorus Aromatic Selenide Drug from Mexico
Phosphorus aromatic selenide drug is an organo-selenium phosphorus compound for antioxidant pharmaceutical applications. It falls under 2931.90.00 as an aromatic organo-inorganic compound with phosphorus and selenium linked to carbon.
Duty Rate — Mexico → Canada
0%
Import Tips
• Confirm that both phosphorus and selenium are directly bonded to carbon
• Provide analytical data to distinguish from organo-sulphur compounds