Synonyms: 4H-1-Benzopyran-4-one, 5,7-dihydroxy-2-[5-hydroxy-2-methyl-2-(4-methyl-3-penten-1-yl)-2H-1-benzopyran-6-yl]-3-(3-methyl-2-buten-1-yl)-, (-)-, 4H-1-Benzopyran-4-one, 5,7-dihydroxy-2-[5-hydroxy-2-methyl-2-(4-methyl-3-pentenyl)-2H-1-benzopyran-6-yl]-3-(3-methyl-2-butenyl)-, (-)- (9CI); (-)-5,7-Dihydroxy-2-[5-hydroxy-2-methyl-2-(4-methyl-3-penten-1-yl)-2H-1-benzopyran-6-yl]-3-(3-methyl-2-buten-1-yl)-4H-1-benzopyran-4-one; (-)-Sanggenone J; Sanggenone JRotation (-).