You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Can you give the molecular formula of the molecule [5-(2,5-dioxooxolan-3-yl)-1,3-dioxo-3a,4,5,9b-tetrahydrobenzo[e][2]benzofuran-8-yl] acetate ?
user
C18H14O8
assistant