You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
3,4-dimethoxy-N-[(1S)-1-(5-methyl-1H-1,2,4-triazol-3-yl)ethyl]benzenesulfonamide The above is the IUPAC name of a molecule. Write its molecular formula.
user
C13H18N4O4S
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