0-21-00-00472 (Beilstein Handbook Reference) 1,3-Dihydro-1,3-dioxo-2H-isoindole-2-propanethiol 2H-ISOINDOLE-2-PROPANETHIOL, 1,3-DIHYDRO-1,3-DIOXO- 3-Mercaptopropylphthalimide 39801-32-6 BRN 0158501 N-(3-Mercaptopropyl)phthalimide Phthaloyl MPA