You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
4-chloro-2-methyl-5-[[(3R)-8-methyl-1,4-dioxaspiro[4.5]decan-3-yl]methylamino]pyridazin-3-one The above is the IUPAC name of a molecule. Write its molecular formula.
user
C15H22ClN3O3
assistant