You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
What is the molecular formula of the molecule identified by 2-[(4-ethyl-5-thiophen-2-yl-1,2,4-triazol-3-yl)sulfanyl]-N-[(3S)-2-methyl-4-oxopentan-3-yl]acetamide ?
user
C16H22N4O2S2
assistant