White crystalline powder, soluble in methanol, ethanol, DMSO and other organic solvents, derived from Elephantopus scaber.
Didancao species lactone has anti-tumor effect: Didancao has inhibitory effect on the proliferation of various tumor cells.
Scabertopin, isolated from Elephantopus scaber, is a sesquiterpene lactone. It is an important anticancer ingredient.