(1R,3aS,5aR,5bR,7aR,9S,11aR,11bR,13aR,13bR)-9-Hydroxy-1-isopropenyl-5a,5b,8,8,11a-pentamethyl-eicosahydro-cyclopenta[a]chrysene-3a-carboxylic acid 472-15-1 AIDS-005859 AIDS005859 Betulic acid Betulinic acid Lup-20(29)-en-28-oic acid, 3-hydroxy-, (3.beta.)- Mairin NSC113090 NSC677578 RL9-080