You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Can you give the molecular formula of the molecule (3aS,4R,7aS)-4-[(4R)-2,2-dimethyl-1,3-dioxolan-4-yl]-2,2-dimethyl-4,7a-dihydro-3aH-[1,3]dioxolo[4,5-c]pyran-7-one ?
user
C13H20O6
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