111-91-1 2,2-Dichloroethylformal Bis(.beta.-chloroethyl) formal Bis(2-chloroethoxy)methane Bis(2-chloroethyl) formal Di(2-chloroethyl)formal Di-2-chloroethyl formal Dichloroethyl formal Dichloroethylformal Ethane, 1,1'-[methylenebis(oxy)]bis(2-chloro- Ethane, 1,1'-[methylenebis(oxy)]bis[2-chloro- Formaldehyde bis(.beta.-chloroethyl) acetal Formaldehyde bis(2-chloroethyl) acetal Methane, bis(2-chloroethoxy)- NSC5212 WLN: G2O1O2G