You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
[(2R,3S,4R)-5-(2-amino-6,8-dioxo-7-prop-2-enyl-1H-purin-9-yl)-3,4-dihydroxyoxolan-2-yl]methyl 6-hydrazinylpyridine-3-carboxylate is the IUPAC name of a molecule. Please give its molecular formula.
user
C19H22N8O7
assistant