You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
4-chloro-3-[(3,4-dichlorophenyl)carbamoylamino]-N-[(1S,2R)-2-methylcyclohexyl]benzamide is the IUPAC name of a molecule. Please give its molecular formula.
user
C21H22Cl3N3O2
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