Perfluoro 2-methyl-3-oxahexanoyl fluoride is colorless and clear liquid ,and is generally produced from hexafluoropropylene oxide. Perfluoro 2-methyl-3-oxahexanoyl fluoride is also known as hexafluoropropylene oxide dimer. It will decompose to hydrogen fluoride (HF) when encountering water,because of its acyl fluoride structure (- COF). It is very active and needs to be strictly sealed for storage. It’s an important fluorinated intermediate.