1-methyl-9H-beta-carboline-9-carbaldehyde 9H-pyrido[3,4-b]indole-9-carboxaldehyde, 1-methyl- InChI=1/C13H10N2O/c1-9-13-11(6-7-14-9)10-4-2-3-5-12(10)15(13)8-16/h2-8H,1H