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What is the molecular formula of the compound with this IUPAC name 1-[4-(13-chloro-4-hydroxy-4-azoniatricyclo[9.4.0.03,8]pentadeca-1(11),3(8),4,6,12,14-hexaen-2-ylidene)piperidin-1-yl]-2-pyridin-4-ylethanone ?
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C26H25ClN3O2+
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