You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Under IUPAC nomenclature, a molecule named 2-[6-bromo-1-[2-(dimethylamino)-2-oxoethyl]benzimidazol-2-yl]sulfanylacetic acid is given. What is its corresponding molecular formula?
user
C13H14BrN3O3S
assistant