Synonyms: 1(2H)-Phenanthrenone,7-[(O-b-D-glucopyranosyl-(1®4)-O-2,6-dideoxy-3-O-methyl-b-D-ribo-hexopyranosyl-(1®4)-O-2,6-dideoxy-3-O-methyl-a-L-lyxo-hexopyranosyl-(1®4)-2,6-dideoxy-3-O-methyl-b-D-ribo-hexopyranosyl)oxy]-3,4,4a,4b,5,6,7,8,10,10a-decahydro-6-hydroxy-2,4b-dimethyl-2-(2-methyl-3-furanyl)-,[2R-(2a,4aa,4bb,6a,7b,10ab)]-; Atratoside B