You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
(7-methyl-4-oxo-2-phenylchromen-3-yl) (3R)-2,3-dihydro-1,4-benzodioxine-3-carboxylate is the IUPAC name of a molecule. Please give its molecular formula.
user
C25H18O6
assistant