You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
[(1R,3aR,3bS,5aR,6R,8aS,8bS,10aS)-3a,5a-dimethyl-6-[(2R)-6-methylheptan-2-yl]-1,2,3,3b,4,5,6,7,8,8a,8b,9,10,10a-tetradecahydroindeno[5,4-e]inden-1-yl]methanol is the IUPAC name of a molecule. Please give its molecular formula.
user
C27H48O
assistant