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What is the molecular formula of the molecule identified by [6-(diethylamino)-9-(2,5-dimethylphenyl)xanthen-3-ylidene]-diethylazanium;[6-(diethylamino)-9-(2-methyl-4-nitrophenyl)xanthen-3-ylidene]-diethylazanium;dichloride ?
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C57H67Cl2N5O4
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