140865-90-3 5-3-(Dimethylamino)propoxycarbonyl-7-oxo-7H-benzo(c)fluorene dihydrochloride 7H-Benzo(c)fluorene-5-carboxylic acid, 7-oxo-, 3-(dimethylamino)propyl ester, dihydrochloride Vufb 14170 Vufb-14170