<unk>  monomer <unk> M), also known as chloroethene in IUPAC nomenclature, is an important industrial chemical chiefly used to produce its polymer, polyvinyl<unk>  (PVC).  At room temperature,<unk> M is a toxic, colorless gas with a sickly sweet odor.
Vinyl chloride
Toluene
Vinyl ether
Trichloroethylene
Nitrazine
Coal tar
Ether
Xylene