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system
Please write the molecular formula of the molecule (3'aS)-1,3-dimethyl-7'-[(E)-[2,4,6-trioxo-1-(2-phenylethyl)-1,3-diazinan-5-ylidene]methyl]spiro[1,3-diazinane-5,4'-2,3,3a,5-tetrahydro-1H-pyrrolo[1,2-a]quinoline]-2,4,6-trione .
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C30H29N5O6
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