You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Under IUPAC nomenclature, a molecule named N-(2-methyl-3,4-dihydro-1H-isoquinolin-4-yl)-N'-(2-methyl-5-morpholin-4-ylphenyl)oxamide is given. What is its corresponding molecular formula?
user
C23H28N4O3
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