cis-1,2-Dichloroethene Other names: (Z)-1,2-Dichloroethene cis-Dichloroethylene cis-1,2-Dichloroethylene Formula: C2H2Cl2 CAS: 156-59-2 Weight: 96,94 g/mol Boiling point: 60,3 °C Melting point: -80,5 °C Density: 1,282 g/cm3