You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
N-ethyl-N'-[2-(4-methylphenyl)propyl]-4-(1,2-oxazol-3-ylmethylsulfonyl)piperazine-1-carboximidamide The above is the IUPAC name of a molecule. Write its molecular formula.
user
C21H31N5O3S
assistant