You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
For the molecule named N-[4-[(6aR,10aS,11aR)-8-carbamoyl-4,5,6a,7-tetrahydroxy-6,9-dioxo-10a,11,11a,12-tetrahydro-10H-tetracen-1-yl]phenyl]-1,2-oxazole-5-carboxamide by IUPAC nomenclature, provide its molecular formula.
user
C29H23N3O9
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