You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
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Translate the chemical IUPAC name (6R)-3-[[2-(hydroxymethyl)-5-methyl-1H-triazolo[1,5-a]pyrimidin-7-yl]sulfanylmethyl]-8-oxo-5-thia-1-azabicyclo[4.2.0]octane-3-carboxylic acid;hydrochloride into its molecular formula.
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C15H20ClN5O4S2
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