1,2-Dichloroethylene carbonate 1,3-Dioxolan-2-one, 4,5-dichloro- 1,3-Dioxolane, 4,5-dichloro-2-oxo- 3967-55-3 4,5-Dichloro-1,3-dioxolane-2-one Carbonic acid, cyclic 1,2-dichloroethylene ester Cyclic 1,2-dichloroethylene carbonate NSC15913 WLN: T5OOOTJ DG EG