1-bromo-2-chloroethane 2-chloroethyl bromide 1-bromo-2-chloroethane beta-chloroethyl bromide 1,2-chlorobromoethane 1,2-bromochloroethane 2-bromo-1-chloroethane ethylene chlorobromide A haloalkane that is bromoethane substituted by chlorine at position 2. 2-bromoethyl chloride 1-bromo-2-chloroethane haloalkane mutagen organochlorine compound organobromine compound