You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
For the molecule named (2R)-N,N-dimethyl-2-[[(5R,6R)-6-methyl-6,7,8,9-tetrahydro-5H-benzo[7]annulen-5-yl]sulfamoyl]propanamide by IUPAC nomenclature, provide its molecular formula.
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C17H26N2O3S
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