You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
(2S)-N-(2,3-dimethylphenyl)-2-(7-methyl-4-oxo-2-phenyl-3-pyrrol-1-ylpyrazolo[3,4-d]pyridazin-5-yl)propanamide The above is the IUPAC name of a molecule. Write its molecular formula.
user
C27H26N6O2
assistant