Pallidol is a resveratroldimer. It can be found in '' red wine'', in '' Cissus pallida'' or in '' Parthenocissus laetevirens''.Characterization of polyphenol compounds from the roots and stems of Parthenocissus laetevirens by high-performance liquid chromatography/tandem mass spectrometry. Juanjuan Chen, Shan He, Hui Mao, Cuirong Sun and Yuanjiang Pan, Rapid Commun. Mass Spectrom. 2009, 23, pp. 737–744,