You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
3-[8a-[3-chloro-4-(3,3-dimethylbutyl)phenyl]-5-(methoxymethyl)-2-oxo-5,6,7,8-tetrahydro-1H-quinazolin-3-yl]propanoic acid is the IUPAC name of a molecule. Please give its molecular formula.
user
C25H35ClN2O4
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