You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
4-[5-[(3-ethyl-1,2,4-oxadiazol-5-yl)methylsulfanyl]-4-phenyl-1,2,4-triazol-3-yl]morpholine is the IUPAC name of a molecule. Please give its molecular formula.
user
C17H20N6O2S
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