You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Translate the chemical IUPAC name N,N-bis(2-cyanoethyl)-2-[[4-cyclopropyl-5-(thiophen-2-ylmethyl)-1,2,4-triazol-3-yl]sulfanyl]acetamide into its molecular formula.
user
C18H20N6OS2
assistant