You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Translate the chemical IUPAC name (3aR,7aS)-2-[3-[4-(2-methylphenyl)piperazin-1-yl]-3-oxopropyl]-3a,4,5,6,7,7a-hexahydroisoindole-1,3-dione into its molecular formula.
user
C22H29N3O3
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