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What is the molecular formula of the compound with this IUPAC name [6-(8-methyl-3-aza-8-azoniabicyclo[4.2.0]octa-1(8),2,4,6-tetraen-5-yl)imidazo[1,2-a]pyridin-3-yl]-morpholin-4-ylmethanone ?
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C19H18N5O2+
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