Sphondin, a natural product isolated and purified from the fruits of Heracleum sibiricum L., possesses an inhibitory effect on IL-1beta-induced increase in the level of COX-2 protein and PGE(2) release in A549 cells.

Tamarixetin, a natural product isolated and purified from the herbs of Heracleum stenopterum with potential protective effect against cancer and cardiovascular diseases, can inhibit proliferation in a concentration- and time-dependent manner, induce apoptosis and block cell cycle progression at G2 -M phase.

Dihydrotamarixetin is a natural product isolated and purified from the herbs of Heracleum stenopterum.

Heraclenol, a natural product isolated and purified from the herbs of Heracleum repula Franch, can inhibit the proliferation of melanoma cells and cell cycle.

Angeflorin is a natural product isolated and purified from the leaves of angelonia grandiflora..

Heraclenol 3'-O-beta-D-glucopyranoside is a natural product isolated and purified from the herbs of Heracleum repula Franch..

Heraclenol 3'-O-[beta-D-apiofuranosyl-(1-6)-beta-D-glucopyranoside] is a natural product isolated and purified from the roots of Heracleum stenopterum.