You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
(2R,3R,4R,5S,6R)-3-amino-6-(hydroxymethyl)oxane-2,4,5-triol;methylsulfonylmethane The above is the IUPAC name of a molecule. Write its molecular formula.
user
C8H19NO7S
assistant