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Under IUPAC nomenclature, a molecule named 7-[[4-[4-[3-(2,4-dihydroxy-5-propan-2-ylphenyl)-5-oxo-1H-1,2,4-triazol-4-yl]phenyl]piperazin-1-yl]-hydroxymethoxy]-10,19-diethyl-19-hydroxy-17-oxa-3,13-diazapentacyclo[11.8.0.02,11.04,9.015,20]henicosa-1(21),2,4(9),5,7,10,15(20)-heptaene-14,18-dione is given. What is its corresponding molecular formula?
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C44H45N7O9
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