11072-16-5 12627-87-1 2,2,3,3,4,4,5-Heptafluorotetrahydro-5-(nonafluorobutyl)furan 335-36-4 EINECS 206-389-5 FC 75 Fluorinert FC 75 Furan, 2,2,3,3,4,4,5-heptafluorotetrahydro-5-(nonafluorobutyl)- Furan, heptafluorotetrahydro-2-(nonafluorobutyl)- Heptafluorotetrahydro-2-(nonafluorobutyl)furan Perfluoro-2-butyltetrahydrofuran Perfluorobutyltetrahydrofuran