4,5,6,7-tetrachloro-3,3-bis(1-ethyl-2-methyl-1H-indol-3-yl)phthalide;4,5,6,7-Tetrachloro-3,3-bis(1-ethyl-2-methyl-1H-indol-3-yl)isobenzofuran-1(3H)-one
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