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system
Name the molecular formula for the molecule established as 4-[(6-hydroxy-2,3-diphenylimidazo[1,2-b][1,2,4]triazin-7-yl)methylidene]-2-methoxycyclohexa-2,5-dien-1-one using the IUPAC nomenclature.
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C25H18N4O3
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