2,2,3,3-Tetrafluorobutanedioyl dichloride356-15-032 % similar 2,2,3,3-Tetrafluorobutanedioic acid377-38-832 % similar 3,3,4,4-Tetrafluorodihydro-2,5-furandione699-30-932 % similar Sodium heptafluorobutyrate2218-54-431 % similar 5-Chlorooctafluoropentanoyl chloride3110-03-031 % similar Methyl 2,2,3,3,4,4,4-heptafluorobutanoate356-24-131 % similar Silver heptafluorobutyrate3794-64-731 % similar 1,1,1,5,5,6,6,7,7,7-Decafluoro-2,4-heptanedione20583-66-830 % similar