You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
For the molecule named 3-[3-(4-ethoxyphenyl)-5-sulfanylidene-1H-1,2,4-triazol-4-yl]-N-methyl-N-[(4-methylsulfanylphenyl)methyl]propanamide by IUPAC nomenclature, provide its molecular formula.
user
C22H26N4O2S2
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