Synonyms: 1,4-Ethanonaphthalen-2(1H)-one,octahydro-4,6,9-trihydroxy-3-(hydroxymethylene)-1,6,8,9-tetramethyl-10-(1-methylpropyl)-,[1R-[1a,3Z,4b,4aa,6a,8b,8ab,9S*,10R*(R*)]]-; 1,4-Ethanonaphthalen-2(1H)-one,octahydro-4,6,9-trihydroxy-3-(hydroxymethylene)-1,6,8,9-tetramethyl-10-[(1R)-1-methylpropyl]-,(1R,3Z,4S,4aS,6R,8R,8aS,9S,10R)- (9CI); Betaenone A; NSC 376690