You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
N-[(2,3-dimethylphenyl)carbamoyl]-2-[[5-(thiophen-2-ylmethyl)-1H-1,2,4-triazol-3-yl]sulfanyl]acetamide The above is the IUPAC name of a molecule. Write its molecular formula.
user
C18H19N5O2S2
assistant