You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
N-cyclopropyl-4-[(E)-3-[2-(2,3-dihydro-1,4-benzodioxine-6-carbonyl)hydrazinyl]-3-oxoprop-1-enyl]benzenesulfonamide is the IUPAC name of a molecule. Please give its molecular formula.
user
C21H21N3O6S
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