You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
For the molecule named 5-[(E)-(3-benzyl-4-oxo-2-sulfanylidene-1,3-thiazolidin-5-ylidene)methyl]-6-(4-benzylpiperidin-1-yl)-1,4-dimethyl-2-oxopyridine-3-carbonitrile by IUPAC nomenclature, provide its molecular formula.
user
C31H30N4O2S2
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