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What is the molecular formula of the molecule identified by (15R,19R)-17-(2-chlorophenyl)-1-(hydroxymethyl)-17-azapentacyclo[6.6.5.02,7.09,14.015,19]nonadeca-2,4,6,9,11,13-hexaene-16,18-dione ?
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C25H18ClNO3
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