85648-55-1 Deoxypentalenylglucuron beta-D-Glucopyranuronic acid, 1-(1,2,3,3a,5a,6,7,8-octahydro-1,7,7-trimethylcyclopenta(c)pentalene-4-carboxylate), (1R-(1alpha,3aalpha,5abeta,8aR*))-