4-14-00-00313 (Beilstein Handbook Reference) 4-Amino-9-fluorenone 4-Amino-9H-fluoren-9-one 4-Aminofluorenone 4269-15-2 BRN 2804575 EINECS 224-257-5 FLUOREN-9-ONE, 4-AMINO- NSC 22836