You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
(2S,3S,4S,5R,6S)-6-[3-[[2-[(4-carbamimidoylanilino)methyl]-1-methylbenzimidazole-5-carbonyl]-pyridin-2-ylamino]-2,2,3,3-tetradeuteriopropanoyl]oxy-3,4,5-trihydroxyoxane-2-carboxylic acid is the IUPAC name of a molecule. Please give its molecular formula.
user
C31H33N7O9
assistant