You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Under IUPAC nomenclature, a molecule named 2-[[(5-chloro-2,1,3-benzothiadiazol-4-yl)amino]methyl]-2-ethylbutan-1-ol is given. What is its corresponding molecular formula?
user
C13H18ClN3OS
assistant