You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
(4aS,5aR,6R,12aR)-7-(dimethylamino)-1,11,12a-trihydroxy-10-methoxy-3,12-dioxo-6-(phenylsulfanylmethyl)-4a,5,5a,6-tetrahydro-4H-tetracene-2-carboxamide is the IUPAC name of a molecule. Please give its molecular formula.
user
C29H30N2O7S
assistant