1976 Volume 24 Issue 4 Pages 815-817
Kanzakiflavone-1 (III), C17H12O7, mp 291-293°, a new flavone, has been isolated from the rhizomes of Iris unguicularis POIR. (Japanese name : Kanzakiayame) together with irigenin (I) and iristectorigenin A (II). The structure of kanzakiflavone-1 (III) has been determined as 5, 8-dihydroxy-4'-methoxy-6, 7-methylenedioxyflavone by chemical and spectral means.