N-Ethylperfluorooctane Sulfonamide (EtFOSA) from Mexico
N-Ethylperfluorooctane sulfonamide (EtFOSA) is a chemically defined perfluorooctane sulfonamide used as a degradation product marker and synthetic intermediate in PFAS research. As a separate compound with a perfluorooctane sulfonamide structure, it falls under tariff item 2935.50.00. The product meets Chapter 29's definition of a chemically defined organic compound and is not excluded by any legal note.
Duty Rate — Mexico → Canada
0%
Import Tips
• Clearly label the product as EtFOSA and provide its CAS number to facilitate CBSA processing
• Since this compound may be used in research, consider whether it qualifies for end-use relief programs
• Verify that the product is not listed under Canada's Prohibition of Certain Toxic Substances Regulations, which may restrict its import