Fustin is the phytogenic flavanol component of the plant Rhus verniciflua Stokes. Fustin shows protective effects on 6-hydroxydopamine-induced neuronal cell death.
3,4,4',7-Tetrahydroxyflavan is a natural product of Toxicodendron, Anacardiaceae. The catalog number is TN2863 and the CAS number is 38412-82-7. 3,4,4',7-Tetrahydroxyflavan can be used as a reference standard.