2',4,7-Trichloro-6-((6-(((2-cyanoethoxy)(diisopropylamino)phosphaneyl)oxy)hexyl)carbamoyl)-3-oxo-7'-phenyl-3H-spiro[isobenzofuran-1,9'-xanthene]-3',6'-diyl bis(2,2-dimethylpropanoate)

2',4,7-Trichloro-6-((6-(((2-cyanoethoxy)(diisopropylamino)phosphaneyl)oxy)hexyl)carbamoyl)-3-oxo-7'-phenyl-3H-spiro[isobenzofuran-1,9'-xanthene]-3',6'-diyl bis(2,2-dimethylpropanoate),