1,2,3,4,6,7,12,12a-Octahydropyrazino(2',1':6,1)pyrido(3,4-b)indole 42021-16-9 Pyrazino(1',2':1,6)pyrido(3,4-b)indole, 1,2,3,4,6,7,12,12a-octahydro-, (+-)-