2H-isoindole-2-propanoic acid, 1,3-dihydro-1,3-dioxo- 3-(1,3-dioxo-1,3-dihydro-2H-isoindol-2-yl)propanoic acid 3339-73-9 BETA-ALANINE,PHTHALOLYL InChI=1/C11H9NO4/c13-9(14)5-6-12-10(15)7-3-1-2-4-8(7)11(12)16/h1-4H,5-6H2,(H,13,14