You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
disodium;6-[[(3S,4aR,6aR,6bS,8aS,11S,12aR,14aR,14bS)-11-carboxylato-4,4,6a,6b,8a,11,14b-heptamethyl-14-oxo-2,3,4a,5,6,7,8,9,10,12,12a,14a-dodecahydro-1H-picen-3-yl]oxy]-5-(6-carboxy-3,4,5-trihydroxyoxan-2-yl)oxy-3,4-dihydroxyoxane-2-carboxylate is the IUPAC name of a molecule. Please give its molecular formula.
user
C42H60Na2O16
assistant