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 N-[2-[[(1S)-3-(2-cyanophenoxy)-1-hydroxypropyl]amino]ethyl]-2-[4-(6-oxo-4,5-dihydro-1H-pyridazin-3-yl)phenoxy]butanamide ?
user
C26H31N5O5
assistant