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system
Name the molecular formula for the molecule established as N'-[(E)-[3-[(2,6-dichlorophenyl)methoxy]phenyl]methylideneamino]-N-(1,5-dimethyl-3-oxo-2-phenylpyrazol-4-yl)oxamide using the IUPAC nomenclature.
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C27H23Cl2N5O4
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