Phenolic constituents from the roots of Alangium chinense

Three new phenolics (1-3), and twenty-eight known compounds (4-31), were isolated from an ethanolic extract of roots of Alangium chinense. Compounds 1, 10-17, 19-21, and 23 showed strong antioxidant activity with IC50 values of 0.14-8.18 μmol/L. 109