Perfluorobutane from Canada
Perfluorobutane (C4F10) is a fully fluorinated saturated acyclic hydrocarbon used in aerosol propellants and ultrasound contrast agents. Although longer than specified trifluoro- and pentafluoro- derivatives, it falls under HTS 2903.49.00.00 as 'other' saturated fluorinated acyclic hydrocarbons per Chapter 29 scope.
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
• Confirm gas/liquid phase at import temperature on invoice to distinguish from liquefied gases of Chapter 27
• For medical grade, include USP/EP certificate of analysis for purity >99.9%
• Declare Montreal Protocol compliance status to avoid anti-dumping scrutiny