You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
3-[5-(furan-2-ylmethylidene)-4,6-dioxo-2-sulfanylidene-1,3-diazinan-1-yl]benzoic acid The above is the IUPAC name of a molecule. Write its molecular formula.
user
C16H10N2O5S
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