You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
For the molecule named N-methyl-N-[2-(4-methylphenoxy)ethyl]-2-(4-oxo-1,3-thiazolidin-3-yl)acetamide by IUPAC nomenclature, provide its molecular formula.
user
C15H20N2O3S
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