1(3H)-Isobenzofuranone, 4,5,6,7-tetrachloro-3,3-bis(2-methyl-1-octyl-1H-indol-3-yl)- 3,3-Bis(N-octyl-2-methylindol-3-yl)-4,5,6,7-tetrachlorophthalide 4,5,6,7-Tetrachloro-3,3-bis(2-methyl-1-octyl-1H-indol-3-yl)phthalide 50293-19-1 EINECS 256-525-2