Synonyms: 2,5-Cyclohexadiene-1,4-dione,5-butoxy-3-[(2E)-5-[(1R,3R)-1,3-dimethyl-2-methylenecyclohexyl]-3-methyl-2-pentenyl]-2-hydroxy-(9CI); 2,5-Cyclohexadiene-1,4-dione,5-butoxy-3-[5-(1,3-dimethyl-2-methylenecyclohexyl)-3-methyl-2-pentenyl]-2-hydroxy-,[1R-[1a(E),3a]]-; Metachromin F