emodin

Emodin (6-methyl-1,3,8-trihydroxyanthraquinone) is a chemical compound that can be isolated from rhubarb, buckthorn, and Japanese knotweed (Reynoutria japonica syn. Polygonum cuspidatum). It is specifically isolated from Rheum Palmatum L. It is also produced by many species of fungi, including members of the genera Aspergillus, Pyrenochaeta, and Pestalotiopsis, inter alia. The common name is derived from Rheum emodi, a taxonomic synonym of Rheum australe, (Himalayan rhubarb) and synonyms include ...