Benzoic acid,3,3'-(1,2-ethynediyl)bis[5-[[3-[[(4-nitrophenyl)methylene]amino]-5-(1-oxo-2,5,8,11-tetraoxadodec-1-yl)phenyl]ethynyl]-,bis[2-[2-(2-methoxyethoxy)ethoxy]ethyl] ester
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