You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
For the molecule named (6S,12aS)-4-(dimethylamino)-6,10,12a-trihydroxy-6-methyl-1,3,11,12-tetraoxo-4a,5,5a,11a-tetrahydro-4H-tetracene-2-carboxamide by IUPAC nomenclature, provide its molecular formula.
user
C22H24N2O8
assistant