You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Can you give the molecular formula of the molecule (3aS,4S,7aR)-2-[[2-(2-methoxyethyl)pyrimidin-5-yl]methyl]-4-(4-methylphenyl)-3,3a,5,6,7,7a-hexahydro-1H-isoindol-4-ol ?
user
C23H31N3O2
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