10-(3-Dimethylaminopropyl)-7-chlorobenzo(b)(1,8)naphthyrid-5-one 28907-44-0 28907-45-1 7-Chloro-10-(3-(dimethylamino)propyl)benzo(b)(1,8)naphthyridin-5(10H)-one Benzonaphthyridone IF C-45