You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
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What is the molecular formula of the molecule identified by 1-[(3aS,6aR)-2,3,3a,4,6,6a-hexahydro-1H-pyrrolo[3,4-c]pyrrol-5-yl]-2-(2,4-dichlorophenoxy)propan-1-one ?
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C15H18Cl2N2O2
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