You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
[2-[[2-(2-chloroanilino)-2-oxoethyl]-methylamino]-2-oxoethyl] 5,6,7,8-tetrahydronaphthalene-2-carboxylate is the IUPAC name of a molecule. Please give its molecular formula.
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C22H23ClN2O4
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