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What is the molecular formula of the molecule identified by 1-(2-hydroxyethyl)-2-[(E,3E)-3-[3-(2-methoxyethyl)-3-methyl-5-sulfo-1H-indol-2-ylidene]prop-1-enyl]-2,3-dimethyl-3-(3-sulfopropyl)indole-5-sulfonic acid ?
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C30H40N2O11S3
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