You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Translate the chemical IUPAC name 1-[3-(2,4-dichlorophenoxy)propyl]-3-ethyl-2-[(1,3,5-trimethylpyrazol-4-yl)methyl]guanidine into its molecular formula.
user
C19H27Cl2N5O
assistant