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What is the molecular formula of the molecule 2,2-dimethylpropanoyloxymethyl 3-(1-aminopropan-2-ylsulfanylmethyl)-6-(1-hydroxyethyl)-7-oxo-1-azabicyclo[3.2.0]hept-2-ene-2-carboxylate ?
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C19H30N2O6S
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