Fluorochemical Surfactant Building Block N-EtFOSE from Canada
N-EtFOSE is a fluorinated sulfonamide used as an intermediate in producing water- and oil-repellent coatings. It precisely matches HTS 2935.30.00.00 for N-Ethyl-N-(2-hydroxyethyl)perfluorooctane sulfonamide, a separate chemically defined compound under Chapter 29. The perfluoro chain and hydroxyethyl group characterize its sulfonamide classification.
Duty Rate — Canada → United States
16.5%
Rate breakdown
9903.05.2910%Section 301 (forced labor) — additional 10% ad valorem on products of Canada
Import Tips
• Include NMR or HPLC data in documentation to prove structural identity; comply with REACH or EPA PFAS reporting if >100 lbs imported; label as 'research chemical' if for lab use to avoid end-use scrutiny