Triphenylene217-59-430 % similar (3S)-1H,2H,3H,4H,9H-Pyrido(3,4-b)indole-3-carboxylic acid42438-90-430 % similar 1,2,3,4-Tetrahydro-beta-carboline-3-carboxylic acid6052-68-230 % similar 3-Bromoindole1484-27-130 % similar 3,3′-Diindolylmethane1968-05-430 % similar Indoxyl480-93-330 % similar 3,6-Diphenylcarbazole56525-79-230 % similar 2-Nitrocarbazole14191-22-130 % similar