.alpha.,.alpha.'-Dichloro-m-xylene 1,3-Bis(chloromethyl)benzene 626-16-4 Benzene, 1,3-bis(chloromethyl)- NSC96971 m-Bis(chloromethyl)benzene m-Dichloroxylene m-Xylene, .alpha.,.alpha.'-dichloro- m-Xylylene dichloride