Synonyms: AC1MCSOK;2,2'-{Oxybis[(1,1,2,2-tetrafluoroethane-2,1-diyl)oxy]}bis(2,2-difluoroethanol);1H,1H,11H,11H-Perfluoro-3,6,9-trioxaundecane-1,11-diol;Fluorinated tetraethylene glycol;2-[2-[2-(1,1-Difluoro-2-hydroxyethoxy)-1,1,2,2-tetrafluoroethoxy]-1,1,2,2-tetrafluoroethoxy]-2,2-difluoroethanol;