You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
[2-(2,4-dimethylanilino)-2-oxoethyl] 3-[(3aS,5R,7aR)-1,3-dioxo-5-phenyl-3a,4,5,6,7,7a-hexahydroisoindol-2-yl]benzoate is the IUPAC name of a molecule. Please give its molecular formula.
user
C31H30N2O5
assistant