You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
For the molecule named (2R,3S)-3-benzyl-4-methyl-1-phenylpentan-2-ol;(3S)-3-benzyl-4-methyl-1-phenylpentan-2-ol;(3S)-3-benzyl-4-methyl-1-phenylpentan-2-one by IUPAC nomenclature, provide its molecular formula.
user
C57H70O3
assistant