You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
N'-(2-ethyl-4-hydroxyphenyl)-6-(6-methoxy-4-methylpyridin-3-yl)-4-[[(2S)-pyrrolidin-2-yl]methylamino]pyrrolo[1,2-b]pyridazine-3-carboximidamide is the IUPAC name of a molecule. Please give its molecular formula.
user
C28H33N7O2
assistant