You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
For the molecule named 5-(ethylsulfamoyl)-2-methyl-N-[5-(2-methylpropyl)-1,3,4-thiadiazol-2-yl]benzamide by IUPAC nomenclature, provide its molecular formula.
user
C16H22N4O3S2
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