You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
What is the molecular formula of the compound with this IUPAC name N-(1,3-benzothiazol-2-yl)-2-[[4-ethyl-5-(thiophen-2-ylmethyl)-1,2,4-triazol-3-yl]sulfanyl]acetamide ?
user
C18H17N5OS3
assistant