(1,2-Dihydro-2-oxo-3H-indol-3-al) thiosemicarbazone 2-(1,2-Dihydro-2-oxo-3H-indol-3-ylidene)hydrazinecarbothioamide 487-16-1 AI3-51987 EINECS 207-650-6 GS 1752 Hydrazinecarbothiamide, 2-(1,2-dihydro-2-oxo-3H-indol-3-ylidene)- Hydrazinecarbothioamide, 2-(1,2-dihydro-2-oxo-3H-indol-3-ylidene)- Indole-2,3-dione, 3-(thiosemicarbazone) Isatin 3-thiosemicarbazone Isatin beta-thiosemicarbazone Isatin-beta-thiosemicarbazone NSC 721