Article Sidebar download PDF DOI: Article Details Issue Vol. 2 No. 1 (1988) Section Articles Main Article Content Quercetln-3, 7-disulpha te from centaurea alexandrina R.M.A. Mansour M.F. Abdalla N.A.M. Saleh Abstract Bull.Chem.Soc.Ethiop.,2(1), 45-46 (1988).