4-Nitroindanone (CAS NO.24623-25-4), its Synonyms are 4-Nitroindan-1-one ; 4-Nitro-1-Indanone ; 4-Nitro-2,3-dihydro-1H-inden-1-one ; 2,3-Dihydro-4-nitroinden-1-one ; 1H-Inden-1-one, 2,3-dihydro-4-nitro- .