Synonyms: 1,4-Phenanthrenedione,4b,5,6,7,8,8a-hexahydro-3-hydroxy-4b,8,8-trimethyl-2-(1-methylethyl)-,(4bS-trans)-; Podocarpa-6,8,12-triene-11,14-dione, 12-hydroxy-13-isopropyl-(7CI,8CI); 6,7-Dehydroroyleanone; 6,7-Didehydroroyleanone; 6-Dehydroroyleanone;Dehydroroyleanone; Royleanone, 9-dehydro-; Royleanone, dehydro-