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What is the molecular formula of the compound with this IUPAC name (15S,19R)-17-(2,5-dichlorophenyl)-16,18-dioxo-17-azapentacyclo[6.6.5.02,7.09,14.015,19]nonadeca-2,4,6,9,11,13-hexaene-1-carbaldehyde ?
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C25H15Cl2NO3
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