You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Convert the IUPAC name of a molecule 2-[(4-benzyl-5-oxo-1H-1,2,4-triazol-3-yl)sulfanyl]-N-(2,3-dihydro-1,4-benzodioxin-6-yl)acetamide into molecular formula.
user
C19H18N4O4S
assistant