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 (3aS,3bS,9aR,9bR,11aS)-5-benzyl-6,9a,11a-trimethyl-2,3,3a,3b,4,5,5a,9b,10,11-decahydro-1H-indeno[5,4-f]quinolin-7-one ?
user
C26H35NO
assistant