You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
3-[5-[benzylsulfonyl-(6-phenyl-1,3-benzothiazol-2-yl)methyl]-1,3,4-oxadiazol-2-yl]-N,N-dimethylpropanamide is the IUPAC name of a molecule. Please give its molecular formula.
user
C28H26N4O4S2
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