Synonyms: Tetrahydrofuran; Diethylene oxide; Butylene oxide; Oxolane; Tetramethylene oxide Molecular Formula: C4H8O Molecular Weight: 72.11 Linear Structural Formula: C4H8O MDL Number: MFCD00005356 Purity: >=99.9% (GC) Melting Point: -108 C (lit.) Density: 0.889…