13758-34-4 5-23-12-00048 (Beilstein Handbook Reference) 6-Methylthio-1,2,3,4-tetrahydro-beta-carboline 9H-Pyrido(3,4-b)indole, 1,2,3,4-tetrahydro-6-methylthio- BRN 0647144 NSC 170452