Synonyms: 8-Nitro-4,4a-dihydro-5H-indeno(1,2-c)pyridazin-3-one;2,4,4a,5-Tetrahydro-8-nitro-3H-indeno(1,2-c)pyridazin-3-one;3H-Indeno(1,2-c)pyridazin-3-one, 2,4,4a,5-tetrahydro-8-nitro-;AC1MJ873;LS-81904;8-nitro-2,4,4a,5-tetrahydroindeno[1,2-c]pyridazin-3-one;114915-66-1