Abstract: Six flavonoid compounds were separated from the aerial parts of Speranskia tuberculata (Bunge) Baill. On the basis of the properties and spectral analysis, their structures were identified as diosmetin (1), luteolin (2), narigenin-7-O-β-D-(4''-p-coumaroyl)-glucopyranoside (3), narigenin-7-O-β-D-(3''-p-coumaroyl)-glucopyranoside (4), amentoflavone (5), and scolymoside (6). All the compounds were obtained from S. tuberculata for the first time and compound 3 is a new compound named as speranskoside.

Key words: Speranskia tuberculata, Euphorbiaceae, Flavonoid, Speranskoside