1(3H)-Isobenzofuranone, 3-(1-ethyl-2-methylindol-3-yl)-3-(diphenylamino)- 1(3H)-Isobenzofuranone, 3-(diphenylamino)-3-(1-ethyl-2-methyl-1H-indol-3-yl)- 3-(Diphenylamino)-3-(1-ethyl-2-methyl-1H-indol-3-yl)phthalide 67697-46-5 EINECS 266-912-8