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system
Please write the molecular formula of the molecule diethyl 4-[4-[[4-[[6-[[4-[[2,6-bis[[2,6-bis(ethoxycarbonyl)pyridin-4-yl]oxy]pyridin-4-yl]oxymethyl]phenyl]sulfanylmethyl]-4-phenylmethoxypyridin-2-yl]methylsulfanyl]phenyl]methoxy]-6-[2,6-bis(ethoxycarbonyl)pyridin-4-yl]oxypyridin-2-yl]oxypyridine-2,6-dicarboxylate .
user
C82H77N7O23S2
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