You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
For the molecule named 2-[(2S,4S,4aR,8aS)-4-hydroxy-2,3,4,4a,6,7,8,8a-octahydropyrano[3,2-b]pyran-2-yl]acetaldehyde by IUPAC nomenclature, provide its molecular formula.
user
C10H16O4
assistant