You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
(2Z,9R)-2-[(4-propan-2-ylphenyl)methylidene]-9-(3-pyrimidin-2-yloxyphenyl)-8,9-dihydrofuro[2,3-f]chromene-3,7-dione is the IUPAC name of a molecule. Please give its molecular formula.
user
C31H24N2O5
assistant