You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Can you give the molecular formula of the molecule 2-[[5-[(3,4-dimethylphenoxy)methyl]-4-ethyl-1,2,4-triazol-3-yl]sulfanylmethyl]imidazo[1,2-a]pyridine ?
user
C21H23N5OS
assistant