(2S,3S,4S,5R,6R)-6-{[(2R,3R,4R,5R,6R)-3-Acetamido-2,5-dihydroxy-6 -(sulfooxy)tetrahydro-2H-pyran-4-yl]oxy}-3,4,5-trihydroxytetrahyd ro-2H-pyran-2-carboxylic acid (non-preferred name);2-[(R)-4-((3R,5S,7R,8R,9S,10S,12S,13R,14S,17R)-3,7,12-trihydroxy-10,13-dimethyl-hexadecahydrocyclopenta[a]phenanthren-17-yl)pentanoylamino]ethanesulfonic acid;