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-[(2,5-difluorophenyl)methyl]-1-ethyl-3-[2-(4-hydroxy-3-methoxyphenyl)ethyl]guanidine;hydroiodide ?
user
C19H24F2IN3O2
assistant