You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
5-ethynyl-6-fluoro-3-[(6-imidazol-1-ylpyridazine-3-carbonyl)amino]pyridine-2-carboxylic acid;methyl 2-[[6-(2-aminopyridin-4-yl)pyridazine-3-carbonyl]amino]-4,5-difluorobenzoate;methyl 3-[(6-imidazol-1-ylpyridazine-3-carbonyl)amino]-5-methylthiophene-2-carboxylate The above is the IUPAC name of a molecule. Write its molecular formula.
user
C49H35F3N16O9S
assistant