You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
5-hydroxy-3,4,6,7,8-pentamethylchromen-2-one;5-hydroxy-3,4,6,7,8-pentamethylisochromen-1-one;5-hydroxy-3,6,7,8-tetramethyl-1,4-benzoxazin-2-one;8-hydroxy-2,5,6,7-tetramethyl-3,1-benzoxazin-4-one is the IUPAC name of a molecule. Please give its molecular formula.
user
C52H58N2O12
assistant