22106-14-5 5-23-07-00369 (Beilstein Handbook Reference) 7-Chloro-2,5-dimethyl-1,2,3,4-tetrahydropyrimino(3,4-a)indole BRN 0653064 Pyrimido(3,4-a)indole, 1,2,3,4-tetrahydro-7-chloro-2,5-dimethyl-