Dichloroethene

Dichloroethene, often abbreviated as DCE, can refer to any one of several isomeric forms of the organochloride with the molecular formula C2H2Cl2:

There are three isomers:
 * 1,1-Dichloroethene
 * 1,2-Dichloroethene (cis and trans)

Dichloroethene should not be confused with dichloroethane which is often abbreviated as DCA.