120944-28-7 2(3H)-Oxazolone, 4-(4-methylphenyl)-5-(2-(4-phenyl-1-piperazinyl)ethyl)-, (Z)-2-butenedioate 4-(4-Methylphenyl)-5-(2-(4-phenyl-1-piperazinyl)ethyl)-2(3H)-oxazolone (Z)-2-butenedioate