1-(5,6-Dimethyl-2-pyrimidinyl)-4-(3,3,3-triphenylpropyl)piperazine fumarate 21026-25-5 Piperazine, 1-(5,6-dimethyl-2-pyrimidinyl)-4-(3,3,3-triphenylpropyl)-, fumarate (1:1) Pyrimidine, 4,5-dimethyl-2(4-(3,3,3-triphenylpropyl)-1-piperazinyl)-, (E)-2-butenedioate (1:1)