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What is the molecular formula of the molecule identified by 6-[(5-methyl-6,7-dihydro-4H-thieno[3,2-c]pyridin-2-yl)methylidene]-7-oxo-4-thia-1-azabicyclo[3.2.0]hept-2-ene-2-carboxylic acid ?
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C15H14N2O3S2
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