1H-Pyrazino(3,2,1-jk)carboxole, 2,4,5,6-tetrahydro-8-methyl- 3,3a-Dehydro-pirlindole 3,3a-Dehydropyrazidol 75804-32-9 8-Methyl-2,4,5,6-tetrahydro-1H-pyrazinol(j,k)carbazol Dehydropirlindole