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What is the molecular formula of the compound with this IUPAC name (6R)-3-(carbamoyloxymethyl)-7-methoxy-8-oxo-7-[(2-phenylsulfanylacetyl)amino]-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic acid ?
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C18H19N3O7S2
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