Alemayehu, Gizachew (PhD)Girma, Tsegaye2018-06-262023-11-092018-06-262023-11-092006-07http://etd.aau.edu.et/handle/12345678/3631The dichloromethane: methanol (1:1) extract of Senna floribunda afforded two bianthraquinones: floribundone-1(11) and 5, 7’- physcion – fallacinol (15) along with three common anthraquinones: chrysophanol (5), physcion (8) and emodin (3). Several un-characterized pigments were also isolated. The compounds are identified on the basis of their color reactions and spectroscopic dataenSenna floribundaThesis