You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Please write the molecular formula of the molecule 3-[6-[3-[(2S)-1-(tetrazol-1-yl)propan-2-yl]oxyphenyl]imidazo[1,2-b]pyridazin-3-yl]pyridine-2-carbonitrile .
user
C22H17N9O
assistant