Abstract: AimTo study the chemical constituents of Corallodiscus flabellata. MethodsFresh plant of Corallodiscus flabellata was extracted twice with boiling water, concentrated to small volume under reduced pressure at 55 ℃. The concentrated material was partitioned with ether, ethyl acetate, and n-butanol. The fraction of ethyl acetate extract was chromatographed over macroporous adsorption resin (Diaion HP-20) eluted with a mixture of H₂O and MeOH in increasing MeOH content. Their fractions from resin were repeatedly chromatographed over Sephadex LH-20, silica gel column chromatography. The compounds were identified on the basis of their physiochemical and spectral data. ResultsSeven compounds were obtained and identified as 5,3′,4′-trihydroxyl-6,7-dimethoxyl-8-C-［β-D-xylocopyranosyl-(1→2)］-β-D-glucopyranosyl flavone (1), 5,4′-dihydroxyl-6,7-dimethoxyl-8-C-［β-D-xylopyranosyl-(1→2)］-β-D-glucopyranosyl flavone (2), 5,4′-dihydroxyl-6,7-dimethoxyl-8-C-β-D-glucopyranosyl flavone (3), 5,4′-dihydroxyl-6,7-dimethoxyl-8-C-［β-D-apiofuranosyl-(1→2)］-β-D-glucopyranosyl flavone (4), 3,4-dihydroxyl benzoyl acetic acid glycol ester (5), hydroxytyrosol (6), apocynin (7). ConclusionCompound 1 and 2 are new compounds, the others were isolated from Corallodiscus flabellata for the first time.