1H-isoindole-1,3(2H)-dione, 2,2'-(sulfonyldi-4,1-phenylene)bis[5-(4-oxo-4H-3,1-benzoxazin-2-yl)-;2,2'-(Sulfonyldi-4,1-phenylene)bis[5-(4-oxo-4H-3,1-benzoxazin-2-yl)-1H-isoindole-1,3(2H)-dione]
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