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What is the molecular formula of the compound with this IUPAC name 9-[[(6E)-5-methylidene-6-prop-2-enylidenecyclohexa-1,3-dien-1-yl]methoxy]-2-(oxolan-2-ylmethoxy)-6,7-dihydropyrimido[6,1-a]isoquinolin-4-one ?
user
C28H28N2O4
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