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What is the molecular formula of the molecule (11S,14E)-14-[(5-bromofuran-2-yl)methylidene]-11-thiophen-2-yl-15-thia-12,17-diazatetracyclo[8.7.0.02,7.012,16]heptadeca-1(10),2,4,6,16-pentaen-13-one ?
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C23H15BrN2O2S2
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