.beta.-Phthalimidopropionaldehyde 2436-29-5 2H-Isoindole-2-propanal, 1,3-dihydro-1,3-dioxo- 3-Phthalimidopropionaldehyde NSC166600 Phthalimide, N-(2-formylethyl)- WLN: T56 BVNVJ C2VH