You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
For the molecule named 2-[(3R)-1-(2,3-dihydro-1,4-benzodioxin-6-ylsulfonyl)piperidin-3-yl]-5-(2-fluorophenyl)-1,3,4-thiadiazole by IUPAC nomenclature, provide its molecular formula.
user
C21H20FN3O4S2
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