Hydrocortisone 17-21 orthoester

Chemical Name: (4'R,8S,9S,10R,11S,13S,14S)-11-hydroxy-2'-methoxy-10,13-dimethyl-2'-propyl-1,6,7,8,9,10,11,12,13,14,15,16-dodecahydrospiro[cyclopenta[a]phenanthrene-17,4'-[1,3]dioxane]-3,5'(2H)-dione;