(S)-1,3-Dihydro-alpha-(2-methylpropyl)-1,3-dioxo-2H-isoindole-2-acetic acid 2419-38-7 2H-Isoindole-2-acetic acid, 1,3-dihydro-alpha-(2-methylpropyl)-1,3-dioxo-, (S)- EINECS 219-337-1