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system
Provide the molecular formula for the IUPAC named substance methyl (13E)-9-methyl-14-oxo-13-[(5-phenyl-1H-pyrazol-4-yl)methylidene]-8-oxa-12-thia-10,15-diazatetracyclo[7.6.1.02,7.011,15]hexadeca-2,4,6,10-tetraene-16-carboxylate .
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C25H20N4O4S
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