1H-indole, 2-chloro-3-methyl-1-(phenylsulfonyl)- 2-chloro-3-methyl-1-(phenylsulfonyl)-1H-indole InChI=1/C15H12ClNO2S/c1-11-13-9-5-6-10-14(13)17(15(11)16)20(18,19)12-7-3-2-4-8-12/h2-10H,1H