3-03-00-00046 (Beilstein Handbook Reference) 3693-53-6 BRN 1812852 Bis(N-ethoxycarbonylamino)methane CARBAMIC ACID, METHYLENEDI-, DIETHYL ESTER Carbamic acid, methylenebis-, diethyl ester (9CI) Diethyl methylenebiscarbamate Diethyl methylenedicarbamate EINECS 223-011-4 Methylene bisurethane Methylene diurethan Methylene diurethane Methylenediurethane N,N-Methylene-bis(ethyl carbamate) NSC 20524