You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
For the molecule named (4S,7R)-4-(2,4-dichlorophenyl)-7-(3,4-dimethoxyphenyl)-3-methyl-6,7,8,9-tetrahydro-4H-[1,2]oxazolo[5,4-b]quinolin-5-one by IUPAC nomenclature, provide its molecular formula.
user
C25H22Cl2N2O4
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