You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
1-[(3S)-5-(2-cyclopropylacetyl)-3-methyl-3-phenyl-2H-1-benzofuran-7-yl]propan-1-one is the IUPAC name of a molecule. Please give its molecular formula.
user
C23H24O3
assistant