You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
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Can you give the molecular formula of the molecule [(3R,3aS,6aS)-3-(4-methoxyphenyl)-2-methyl-1,3,3a,4,6,6a-hexahydropyrrolo[3,4-c]pyrrol-5-yl]-(1-methylcyclopropyl)methanone ?
user
C19H26N2O2
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