134515-53-0 24-Norcholane-2,3,16,20-tetrol, 23-[2-methyl-1-(1-methylethyl)cyclopropyl]-, 2,3-bis(hydrogen sulfate), (2.beta.,3.alpha.,5.alpha.,16.beta.,20.xi.)- AIDS-002456 AIDS002456 Sterol HB99 Weinbersterol disulfate A