You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
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Under IUPAC nomenclature, a molecule named sodium;(6R,7R)-3-(acetyloxymethyl)-8-oxo-7-(2-oxo-3-phenylpropyl)-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic acid;benzenecarbothioic S-acid;(6R,7R)-3-(benzoylsulfanylmethyl)-8-oxo-7-(2-oxo-3-phenylpropyl)-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic acid;oxido formate is given. What is its corresponding molecular formula?
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C51H47N2NaO15S4
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