Synonyms: 2-Isoindolineaceticacid, a-isobutyl-1,3-dioxo-, L- (8CI);2H-Isoindole-2-acetic acid, 1,3-dihydro-a-(2-methylpropyl)-1,3-dioxo-, (S)-; (aS)-1,3-Dihydro-a-(2-methylpropyl)-1,3-dioxo-2H-isoindole-2-aceticacid; N-Phthaloyl-(S)-leucine; N-Phthaloyl-L-leucine; Phthalimidoleucine;Phthaloyl-L-leucine