title: Further quinoidal derivatives from Rubia cordifolia L.
abstract: Two new quinoidal dimers, a new naphthohydroquinone anhydride, a known naphthoic acid ester derivative and two known benzoic acid derivatives were isolated from the chloroform fraction of a chloroform-methanol (1:1) extract of Rubia cordifolia L. The identification of these compounds was based on spectral analysis.
authors.affiliation: Department of Pharmacognosy, Faculty of Pharmacy, Assiut University, Egypt.
authors.forename: H A
authors.initials: HA
authors.lastname: Hassanean
authors.forename: Z Z
authors.initials: ZZ
authors.lastname: Ibraheim
authors.forename: K
authors.initials: K
authors.lastname: Takeya
authors.forename: H
authors.initials: H
authors.lastname: Itorawa
mesh_terms: D009682:Magnetic Resonance Spectroscopy; D013058:Mass Spectrometry; D018517:Plant Roots / Q000737:chemistry; D010946:Plants, Medicinal / Q000737:chemistry*; D011809:Quinones / Q000737:chemistry / Q000302:isolation & purification*
chemical_list: D011809:Quinones