Irisdichotins A–C, three new flavonoid glycosides from the rhizomes ofIris dichotomaPall.

Three new compounds including one flavonol glycoside, irisdichotin A (1), and two flavanonol glycosides, irisdichotins B (2) and C (3), were isolated from the rhizomes of Iris dichotoma Pall. Their structures were elucidated on the basis of spectroscopic methods.