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 1-(6-pyrazol-1-ylpyridazin-3-yl)-N-(4-pyridin-3-yl-1,3-thiazol-2-yl)piperidine-4-carboxamide .
user
C21H20N8OS
assistant