Synonyms: 7-Methylamino-4,4a-dihydro-5H-indeno(1,2-c)pyridazin-3-one;2,4,4a,5-Tetrahydro-7-(methylamino)-3H-indeno(1,2-c)pyridazin-3-one;3H-Indeno(1,2-c)pyridazin-3-one, 2,4,4a,5-tetrahydro-7-(methylamino)-;AC1MJ87C;LS-81903;7-(methylamino)-2,4,4a,5-tetrahydroindeno[1,2-c]pyridazin-3-one;114915-73-0