You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
9-[1-(1-cyclopropylsulfonylpiperidin-4-yl)pyrazol-4-yl]-10-methoxy-2-oxo-6-propan-2-yl-7H-pyrido[2,1-a]phthalazine-3-carboxylic acid is the IUPAC name of a molecule. Please give its molecular formula.
user
C28H33N5O6S
assistant