A new kaempferol trioside from Farsetia aegyptia

A new kaempferol trioside, kaempferol-3-O-(2aEuro(3)-alpha-L-arabinopyranosyl)-alpha-L-rhamnopyranoside-7-O-alpha-L-rhamnopyranoside, along with eight known flavonoid compounds were isolated from the methanolic extract of Farsetia aegyptia Turra. growing in Egypt. The structures were established on the basis of detailed spectral analysis (UV, H-1 NMR, C-13 NMR, APT, HMBC, FABMS, and EIMS).