You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
2-[5-[(2Z)-2-(furan-2-ylmethylidene)-3,7-dioxo-8,9-dihydrofuro[2,3-f]chromen-9-yl]-2-methoxyphenoxy]acetamide is the IUPAC name of a molecule. Please give its molecular formula.
user
C25H19NO8
assistant