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What is the molecular formula of the compound with this IUPAC name (1R,8S)-16,16-bis(furan-3-yl)-2-azoniatetracyclo[6.6.2.02,7.09,14]hexadeca-2,4,6,9(14),10,12-hexaene-10-sulfonic acid ?
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C23H18NO5S+
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