1H-Pyrido(4,3-b)indole, 2,3,4,5-tetrahydro-2-methyl- 2,3,4,5-Tetrahydro-2-methyl-1H-pyrido(4,3-b)indole 5-23-07-00328 (Beilstein Handbook Reference) 5094-12-2 BRN 0152265 NSC 122300