You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
1-[5-chloro-2-(trifluoromethyl)-1,3-benzodioxol-2-yl]-3-(1,3,4-thiadiazol-2-yl)urea is the IUPAC name of a molecule. Please give its molecular formula.
user
C11H6ClF3N4O3S
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