You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
[(4Z)-2-(hydroxymethyl)-4-[(4-nitrophenyl)methylidene]-5-oxooxolan-2-yl]methyl 2,4,6-tri(propan-2-yl)benzoate is the IUPAC name of a molecule. Please give its molecular formula.
user
C29H35NO7
assistant