You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Convert the IUPAC name of a molecule 5-(2,5-dimethylcyclohexa-1,5-diene-1-carbonyl)-2-(4-nitrososulfinylphenoxy)-N-oxobenzenesulfonamide into molecular formula.
user
C21H18N2O7S2
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