You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
(3Z)-3-[(2-methyl-3H-pyrrol-4-yl)methylidene]-5-(8-methyl-1,2,3,4-tetrahydroquinolin-7-yl)-1H-inden-2-one is the IUPAC name of a molecule. Please give its molecular formula.
user
C25H24N2O
assistant