You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
(2R,3S,4S,5R)-4-[dimethyl(phenyl)silyl]-5-(methoxymethyl)-2-phenyloxolane-3-carbaldehyde is the IUPAC name of a molecule. Please give its molecular formula.
user
C21H26O3Si
assistant