You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
For the molecule named (2R,3S,4S,5R,6S)-2-(hydroxymethyl)-6-[(5-methoxy-6-prop-2-enyl-1,3-benzodioxol-4-yl)oxy]oxane-3,4,5-triol by IUPAC nomenclature, provide its molecular formula.
user
C17H22O9
assistant