You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Please write the molecular formula of the molecule 3-[2-(3-ethyl-1,2,4-triazol-4-yl)ethyl]-1-methyl-2-propyl-1-(thiophen-3-ylmethyl)guanidine .
user
C16H26N6S
assistant