bis-(3-methyl-indol-2-yl)-sulfide

3-methyl-2-[(3-methyl-1H-indol-2-yl)disulfanyl]-1H-indole

2-[bis(3-methyl-1H-indol-2-yl)methyl]-3-methyl-1H-indole

bis(2-methylindol-3-yl)(3-methylindol-2-yl)methan

bis(3-methylindol-2-yl)(2-methylindol-3-yl)methan