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What is the molecular formula of the molecule identified by zinc;methoxy-[4-[15-[4-methoxycarbonyl-2,6-bis(2-methoxy-2-oxoethoxy)phenyl]porphyrin-22-id-5-ylidene]-3,5-bis(2-methoxy-2-oxoethoxy)cyclohexa-2,5-dien-1-ylidene]methanolate ?
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C48H40N4O16Zn
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