5,7-Dihydroxy-3-(4-hydroxy-3,5-dimethoxybenzyl)-6,8-dimethylchroman-4-one has oxygen free radicals(OFRs) scavenging effects, it can scavenge hydroxyl radical(·OH) and hydrogen peroxide(H2O2) in vitro.It shows a strong cytotoxic activity on HeLa-S3 cell.
1-(3',5'-dimethoxy)phenyl-2-[4''-O-β-D-glucopyranosyl (6→1)-O-α-L-rhamnopyranosyl]phenylethane showed cytotoxic activities to Hela and hep2 cell lines.