1-Piperazineethanol, 4-(4-(2-chloro-10-phenothiazinyl)butyl)-, dihydrochloride 10-(4-(4-beta-Hydroxyethyl-1-piperazinyl)butyl)-2-chlorophenothiazine dihydrochloride 73771-29-6 Phenothiazine, 2-chloro-10-(4-(4-(2-hydroxyethyl)-1-piperazinyl)butyl)-, dihydrochloride