You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
2-[1-[[[2-(5,7-dihydroxy-4-methyl-2-oxochromen-3-yl)acetyl]amino]methyl]cyclohexyl]acetate The above is the IUPAC name of a molecule. Write its molecular formula.
user
C21H24NO7-
assistant