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 2,4-dioxo-3-(oxolan-2-ylmethyl)-N-[2-[(3-phenyl-[1,2,4]triazolo[4,3-b]pyridazin-6-yl)oxy]ethyl]-1H-pyrimidine-5-carboxamide ?
user
C23H23N7O5
assistant