Butanoic acid, 2,2-dihydroxy-3,3,4,4,4-pentafluoro-, compd. with diethylamine Diethylamine compd. with 2,2-dihydroxy-3,3,4,4,4-pentafluorobutanoic acid EK7796000 alpha,alpha-Dihydroxypentafluorobutanoic acid diethylammonium salt