1-(4-Methanesulfonylphenyl)-2-(4-phenylpiperazino)ethanol maleate 1-Piperazineethanol, alpha-(4-(methylsulfonyl)phenyl)-4-phenyl-, (Z)-2-butenedioate (1:1) 56621-71-7 alpha-(4-(Methylsulfonyl)phenyl)-4-phenyl-1-piperazineethanol maleate