3-Hydroxy-1-methyl-5,6-indolinedione semicarbazone 3-Hydroxy-1-methyl-5,6-inodlindionsemicarbazon 3-Hydroxy-1-methyl-5-semicarbazono-6(5H)-indolinon 5,6-INDOLINEDIONE, 3-HYDROXY-1-METHYL-, 5-SEMICARBAZONE 69-81-8