Synonyms: Ethylene,1,2-dichloro-1,2-difluoro- (7CI,8CI); 1,2-Dichloro-1,2-difluoroethene;1,2-Dichloro-1,2-difluoroethylene; 1,2-Dichlorodifluoroethene;1,2-Dichlorodifluoroethylene; 1,2-Difluoro-1,2-dichloroethene;1,2-Difluoro-1,2-dichloroethylene; 1,2-Difluorodichloroethylene; CFC 1112