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 2-[(4-benzyl-5-methyl-1H-imidazol-2-yl)sulfanyl]-N-(2-hydroxy-3-methylbutyl)acetamide ?
user
C18H25N3O2S
assistant