You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Under IUPAC nomenclature, a molecule named 6-(3-bromo-4,5-dimethoxyphenyl)-3-methylsulfanyl-2,6-dihydro-[1,2,4]triazino[1,6-c]quinazolin-1-one is given. What is its corresponding molecular formula?
user
C19H17BrN4O3S
assistant