2,5-Cyclohexadiene-1.4-dione, 2-hydroxy-5-methoxy-3-((1,2,3,4,4a,7,8,8a-octahydro-1,2,4a,5-tetramethyl-1-naphthalenyl)methyl)- 5-epi-Isospongiaquinone 69672-66-8 Isospongiaquinone