C4H8O, CAS Number-109-99-9, butylene oxide, tetraidrofurano, 1,4-epoxybutane, furanidine, oxacyclopentane, tetrahydrofuranne, hydrofuran, furan, tetrahydro, tetrahydrofuran, tetramethylene oxide, 2.5L, 66 deg.C, CHEBI:26911, Colorless, 72.11g/mol, WYURNTSHIVDZCO-UHFFFAOYSA-N, oxolane, -108.4 deg.C