Results 31 to 40 of about 32,676 (309)
Spectral studies of some hydroxy-derivatives of anthraquinones [PDF]
, 1970 The u.v., visible, and i.r. spectra of several hydroxy-anthraquinones are discussed and the bands are assigned. These bands are compared with those of anthracene and anthraquinone. The band at 207 nm.
El Ezaby, M. S. +3 more
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Saudi Pharmaceutical Journal, 2019 Rhei rhizome (Rheum officinale Baill.) (RR) contains a large number of anthraquinone bioactive, yet little is known of the combined effect of these anthraquinones in a mixture.
Zeyad Alehaideb +3 more
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Some anticancer agents as effective glutathione S-transferase (GST) inhibitors
Open Chemistry, 2023 The objective of this research was to investigate the impact of anthraquinone (AQ) compounds on the activity of the enzyme glutathione S-transferase (GST).
Gökçe Başak
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Preparative isolation of anthraquinones from the fungus Dermocybe sanguinea using enzymatic hydrolysis by the endogenous beta-glucosidase [PDF]
, 2000 Peer ...
Elovaara, Pia +3 more
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1-Dimethylamino-9,10-anthraquinone [PDF]
Acta Crystallographica Section E Structure Reports Online, 2011 In the crystal structure of the title compound, C(16)H(13)NO(2), adjacent mol-ecules are linked through C-H⋯π and π-π [centroid-centroid distances = 3.844 (2) Å] contacts. The anthracene ring system and dimethyl-amino group are oriented at a dihedral angle of 38.4 (1)°. In the crystal, the mean planes of adjacent anthracene units are inclined at angles
Niedziałkowski, Paweł +3 more
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Stepwise pH-Gradient elution for the preparative separation of natural anthraquinones by multiple liquid-liquid partition [PDF]
, 2001 Peer ...
Hynninen, Paavo H., Räisänen, Riikka
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Anthraquinones tautomerism: VII. Hydroxy-substituted anthraquinones
Russian Journal of Organic Chemistry, 2007 Tautomerism of β-mono-, β,β'-dihydroxyanthraquinones, and their anions was studied for the first time by quantum-chemical and correlation methods. 2-Hydroxyanthraquinone exists exclusively in 9,10-quinoid form, and its ionization involves a tautomeric transformation into 10-oxido-2,9- anthraquinone.
Fain V.Ya., Zaitsev B.E., Ryabov M.A.
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1-(2-Methoxyanilino)anthraquinone [PDF]
Acta Crystallographica Section E Structure Reports Online, 2010 In the title compound, C(21)H(15)NO(3), the dihedral angle formed between the aromatic ring systems is 71.50 (3)°. The meth-oxy group is coplanar with the benzene ring to which it is connected, the C-O-C-C torsion angle being 6.37 (17)°. The observed conformation is stabilized by an intra-molecular N-H⋯O hydrogen bond, generating an S(6) ring.
Lihua Lu, Liang He
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Molecules, 2019 (1) Background: Rhubarb anthraquinones—a class of components with neuroprotective function—can be used to alleviate cerebral ischemia reperfusion injury. (2) Methods: The three pharmacodynamic indicators are neurological function score, brain
Rong-Rong Li +7 more
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Molecules, 2023 Emodin-8-O-glucoside (E-8-O-G) is a glycosylated derivative of emodin that exhibits numerous biological activities, including immunomodulatory, anti-inflammatory, antioxidant, hepatoprotective, or anticancer activities.
Estera Okon +7 more
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