1,3-Dioxa-9-azaspiro(5.5)undecane, 5-ethyl-9-(3-(p-fluorobenzoyl)propyl)-, hydrochloride 74203-68-2 BUTYROPHENONE, 4-(5-ETHYL-1,3-DIOXA-9-AZASPIRO(5.5)UNDEC-9-YL)-4'-FLUORO-, HYDRO Butyrophenone, 4-(5-ethyl-1,3-dioxa-9-azaspiro(5.5)undec-9-yl)-4'-fluoro-, hydrochloride, hydrate