sodium (4R)-4-[(3R,5R,8R,9R,10S,12S,13R,14S,17R)-3,12-dihydroxy-8,10,13-trimethyl-1,2,3,4,5,6,7,9,11,12,14,15,16,17-tetradecahydrocyclopenta[a]phenanthren-17-yl]pentanoate