You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
(E)-3-[4-(cyclopropylsulfamoyl)phenyl]-N-[1-(5-methyl-1,2,4-oxadiazol-3-yl)cyclopentyl]prop-2-enamide is the IUPAC name of a molecule. Please give its molecular formula.
user
C20H24N4O4S
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