2,7-DINITRO-9H-FLUOREN-9-ONE 2,7-Dinitrofluoren-9-one 2,7-Dinitrofluorenone 31551-45-8 4-07-00-01638 (Beilstein Handbook Reference) 9-Fluorenone, 2,7-dinitro- 9H-Fluoren-9-one, 2,7-dinitro- BRN 1994019 CCRIS 2911 EINECS 250-695-1 Fluoren-9-one, 2,7-dinitro- NSC 86561