You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Under IUPAC nomenclature, a molecule named 1-(3-ethoxyspiro[3.5]nonan-1-yl)-3-ethyl-2-[[4-(2-hydroxyethoxy)-3-methoxyphenyl]methyl]guanidine is given. What is its corresponding molecular formula?
user
C24H39N3O4
assistant