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What is the molecular formula of the molecule (2S,5R)-6-(3-diethoxyphosphoryl-2-oxopropylidene)-3,3-dimethyl-4-methylidene-7-oxo-4lambda4-thia-1-azabicyclo[3.2.0]heptane-2-carboxylic acid ?
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C16H24NO7PS
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