You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
For the molecule named (1S,4aR,13aR,14aS)-3-acetyl-1,12-bis(dimethylamino)-4,4a,6-trihydroxy-7-methoxy-13,13a,14,14a-tetrahydro-1H-pentacene-2,5-dione by IUPAC nomenclature, provide its molecular formula.
user
C29H32N2O7
assistant