(-)-Nantradol 1,9-Phenanthridinediol, 5,6,6a,7,8,9,10,10a-octahydro-6-methyl-3-((1R)-1-methyl-4-phenylbutoxy)-, 1-acetate, (6S,6aR,9R,10aR)- 1,9-Phenanthridinediol, 5,6,6a,7,8,9,10,10a-octahydro-6-methyl-3-(1-methyl-4-phenylbutoxy)-, 1-acetate, (6S-(3(S*),6alpha,6aalpha, 9alpha,10abeta))- 71048-87-8 CP 50556-1 Levonantradol Levonantradolum [INN-Latin] l-Nantradol