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system
Provide the molecular formula for the IUPAC named substance 3-N-(3-chloro-4-fluorophenyl)-5-N-[1-(4-fluorophenyl)ethyl]-2-methyl-1,1-dioxo-1,2,6-thiadiazinane-3,5-dicarboxamide .
user
C20H21ClF2N4O4S
assistant