You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
What is the molecular formula of the molecule identified by (4R,4aS,5aR,12aR)-9-(butylaminomethyl)-4,7-bis(dimethylamino)-3,10,12a-trihydroxy-1-methylidene-12-nitroso-11-oxo-4a,5,5a,6-tetrahydro-4H-tetracene-2-carboxamide ?
user
C29H39N5O6
assistant