You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
(3S,4S,5S,6S)-N'-amino-3,4,5,6,7-pentahydroxy-2-oxoazepane-3-carboximidamide is the IUPAC name of a molecule. Please give its molecular formula.
user
C7H14N4O6
assistant