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 1-[2-(2,4-dimethyl-1,3-thiazol-5-yl)ethyl]-3-ethyl-2-(2-phenylmethoxyethyl)guanidine ?
user
C19H28N4OS
assistant