(E)-5-(2-(3,5-Dimethoxyphenyl)ethenyl)-2-methoxyphenol 108957-73-9 4,3',5'-Tri-O-methylpiceatannol NSC 381864 NSC-381864 Phenol, 5-(2-(3,5-dimethoxyphenyl)ethenyl)-2-methoxy-, (E)-