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A member of the class of chloroethenes that is ethene in which both of the hydrogens attached to one of the carbons are replaced by chlorines." []

1, 2-Dichloroethene, also called 1, 2-dichloroethylene, is a highly flammable, colorless liquid with a sharp, harsh odor. It is used to produce solvents and in chemical mixtures. You can smell very small amounts of 1, 2-dichloroethene in air (about 17 parts of 1, 2-dichloroethene per million parts of air [17 ppm]). There are two forms of 1, 2-dichloroethene; one is called cis-1, 2-dichloroethene and the other is called trans-1,2-di-chloroethene. Sometimes both forms are present as a mixture. 1,2-dichloroethylene, (cis isomers) appears as a clear colorless liquid with an ether-like odor. Flash point 36-39 °F. Denser than water and insoluble in water. Vapors heavier than air. Used in the making of perfumes. Cis-1,2-dichloroethene is a 1,2-dichloroethene.

1, 2-Dichloroethene, also called 1, 2-dichloroethylene, is a highly flammable, colorless liquid with a sharp, harsh odor. It is used to produce solvents and in chemical mixtures. You can smell very small amounts of 1, 2-dichloroethene in air (about 17 parts of 1, 2-dichloroethene per million parts of air [17 ppm]). There are two forms of 1, 2-dichloroethene; one is called cis-1, 2-dichloroethene and the other is called trans-1,2-di-chloroethene. Sometimes both forms are present as a mixture. 1,2-dichloroethylene, (trans isomers) is a clear colorless liquid with a pleasant odor. Flash point 43 °F. 1,2-dichloroethene is a member of chloroethenes. Trans-1,2-dichloroethene (1,2-DCE) is one of two isomers of 1,2-dichloroethene. It is a highly flammable, colorless liquid with a sharp, harsh odor. 1,2-DCE is used as a solvent for waxes, resins, acetylcellulose, perfumes, dyes, lacquers, thermoplastics, fats, and phenols. It is also used as an intermediate in the preparation of other chlorinated solvents. (L585, L586)

1, 2-Dichloroethene, also called 1, 2-dichloroethylene, is a highly flammable, colorless liquid with a sharp, harsh odor. It is used to produce solvents and in chemical mixtures. You can smell very small amounts of 1, 2-dichloroethene in air (about 17 parts of 1, 2-dichloroethene per million parts of air [17 ppm]). There are two forms of 1, 2-dichloroethene; one is called cis-1, 2-dichloroethene and the other is called trans-1,2-di-chloroethene. Sometimes both forms are present as a mixture.