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What is the molecular formula of the molecule 2-[3-[5-(butylcarbamoyl)-3-methyl-7-sulfo-1,3-bis(3-sulfopropyl)thieno[2,3-g]indol-2-ylidene]prop-1-enyl]-3,3,5-trimethyl-1-(3-sulfopropyl)thieno[2,3-g]indol-1-ium-7-sulfonic acid ?
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C41H52N3O16S7+
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