You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
For the molecule named 3-(diethylsulfamoyl)-N-[(2S)-3-methyl-1-oxo-1-(1,2,3,4-tetrahydronaphthalen-1-ylamino)butan-2-yl]benzamide by IUPAC nomenclature, provide its molecular formula.
user
C26H35N3O4S
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