Vinyl chloride is an organochloride with the formula C2H3Cl that is also called vinyl chloride monomer (VCM). Vinyl chloride, a gas with a sweet odour, is a chemical intermediate, not a final product which is highly toxic, flammable, and carcinogenic.
This colourless compound is an important industrial chemical chiefly used to produce the polymer polyvinyl chloride (PVC). In the past VCM was used as a refrigerant.