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What is the molecular formula of the molecule identified by (5R,6S)-6-[(1R)-1-hydroxyethyl]-3-[(5R)-5-methyl-1-prop-2-enoxycarbonylpyrrolidin-3-yl]-7-oxo-1-azabicyclo[3.2.0]hept-2-ene-2-carboxylic acid ?
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C18H24N2O6
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