You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Convert the IUPAC name of a molecule N-[(1Z)-1-cinnamylidene-4,4-dimethyl-5-oxoimidazol-1-ium-2-yl]-4-methylbenzenesulfonamide into molecular formula.
user
C21H22N3O3S+
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