Synonyms: 2,5-Cyclohexadiene-1,4-dione,2-hydroxy-5-methoxy-3-[(2E)-3-methyl-5-(2,6,6-trimethyl-2-cyclohexen-1-yl)-2-pentenyl]-,(-)- (9CI); 2,5-Cyclohexadiene-1,4-dione,2-hydroxy-5-methoxy-3-[3-methyl-5-(2,6,6-trimethyl-2-cyclohexen-1-yl)-2-pentenyl]-,(E)-(-)-; Isometachromin