Synonyms: 22-Oxaursane;1H-Chryseno[2,1-b]pyran, eicosahydro-1,2,4a,6a,6b,9,9,12a-octamethyl-, [1S-(1a,2b,4aa,6ab,6ba,8ab,12aa,12bb,14aa,14ba)]-; [1S-(1a,2b,4aa,6ab,6ba,8ab,12aa,12bb,14aa,14ba)]-Eicosahydro-1,2,4a,6a,6b,9,9,12a-octamethyl-1H-chryseno[2,1-b]pyran