You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
What is the molecular formula of the compound with this IUPAC name 7-chloro-3-[[4-(2-fluorophenyl)sulfonyl-1,4-diazepan-1-yl]methyl]-4H-1lambda6,2,4-benzothiadiazine 1,1-dioxide ?
user
C19H20ClFN4O4S2
assistant