cis-2-Pentene Other names: (Z)-2-Pentene cis-β-Amylene cis-Pentene 2-(Z)-C5H10 cis-Pentene-2 Pentene-2, cis- (Z)-pent-2-ene Formula: C5H10 CAS: 627-20-3 Weight: 70,1329 g/mol Boiling point: 37 – 38 °C Melting point: -180 °C Density: 0,65 g/cm3