4-03-00-01887 (Beilstein Handbook Reference) 73926-95-1 BRN 1801924 Butanedioic acid, 2-(diethoxymethyl)-3-formyl-, diethyl ester (9CI) Diethyl 2,3-diformylsuccinate mono(diethylacetal) NSC 221186 Succinic acid, 2,3-diformyl-, diethyl ester, mono(diethylacetal)