2-chloro-10-(3-(4-(2-hydroxyethyl)piperazin-1-yl)propyl)-10H-phenothiazine 5-oxide;4-[3-(2-Chloro-10H-phenothiazin-10-yl)propyl]-1-piperazineethanol S-Oxide; 4-[3-(2-Chlorophenothiazin-10-yl)propyl]-1-piperazineethanol S-Oxide; Ethaperazine Sulfoxide; Perphenazine EP Impurity A;Perphenazine Sulfoxide
