2-(beta-Hydroxyphenethyl)-1,2,3,4,6,7,12,12a-octahydropyrazino(2,1-b)(3)benzazepine difumarate 58350-16-6 Pyrazino(2,1-b)(3)benzazepine-2(1H)-ethanol, 3,4,6,7,12,12a-hexahydro-alpha-phenyl-, (E)-2-butenedioate (1:2) (salt)