Results 1 to 10 of about 18,274 (245)
New Cytotoxic Anthraquinone Derivatives from a Deep-Sea-Derived Aspergillus sp. SCSIO 41331 [PDF]
Two new anthraquinone derivatives, (±)-1′-O-methyl-6-chloroaverantin (1a and 1b) and 6-chloroaverythrin (2), and one new diphenyl ether 1-((E)-but-2-en-2-yl)-3,8-dihydroxy-6-((E)-4-hydroxybut-2-en-2-yl)-4,9-dimethyl-11H-dibenzo[b,e][1,4]dioxepin-11-one ...
Ziyi Wu +9 more
doaj +2 more sources
Objective: Optimization of the extraction process of anthraquinone from fermented Morinda officinalis and investigated its antioxidant and hypoglycemic activities. Methods: Taking the extraction ratio of anthraquinone as the evaluation index, the optimal
Dong PENG +6 more
doaj +1 more source
Anthraquinone contamination levels and exposure risk assessment in tea for sale in border areas
ObjectiveTo investigate the contamination levels of anthraquinone (9,10-anthraquinone as representative) in tea for sale in border areas in China, and to assess the exposure level and health risk of anthraquinone for residents.MethodsThe content of ...
XIE Qianqian +5 more
doaj +1 more source
E. coli is a Gram-negative bacterium that causes different human infections. Additionally, it resists common antibiotics due to its outer protective membrane. Natural products have been proven to be efficient antibiotics.
Hani A. Alhadrami +4 more
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2-(Dimethylamino)anthraquinone [PDF]
The mol-ecule of the title compound, C(16)H(13)NO(2), is almost planar, with a maximum deviation of 0.013 (2) Å from the best plane; the dihedral angle between the two aromatic rings is 1.06 (1)°. In the crystal, mol-ecules are linked through weak intra-molecular C-H⋯O inter-actions, forming chains running parallel to [10].
Zhuan Fei, Qun Cai, Lin Li
openaire +3 more sources
Anthraquinones with Antiplasmodial Activity from the Roots of Rennellia elliptica Korth. (Rubiaceae)
Dichloromethane root extract of Rennellia elliptica Korth. showed strong inhibition of Plasmodium falciparum growth in vitro with an IC50 value of 4.04 µg/mL.
Faridahanim Mohd Jaafar +5 more
doaj +1 more source
Anthraquinone in Indonesian infusion tea: analysis by HPLC–UV and risk assessment
Background Detection of anthraquinone in tea samples marketed in Europe is raising a concern due to the possible carcinogenicity of this compound. The European Union has set a very low maximum residue level (MRL) for anthraquinone residue in tea (0.02 mg/
Retno Yusiasih +4 more
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The title compound, C17H12O4, was synthesized from the dye alizarin. The dihedral angle between the mean plane of the anthraquinone ring system (r.m.s. deviation = 0.039 Å) and the dioxepine ring is 16.29 (8)°. In the crystal, the molecules are linked by
Sofia Zazouli +4 more
doaj +1 more source
Quinones as Promising Compounds against Respiratory Viruses: A Review
Respiratory viruses represent a world public health problem, giving rise to annual seasonal epidemics and several pandemics caused by some of these viruses, including the COVID-19 pandemic caused by the novel SARS-CoV-2, which continues to date.
Ivan Chan-Zapata +2 more
doaj +1 more source
The plant allelochemical, quinizarin (1,4-dihydroxy-9,10-anthraquinone), and five anthraquinones that were synthesized from quinizarin, namely, 1,4-anthraquinone; 2-hydroxy-1,4-anthraquinone; 2-methoxy-1,4-anthraquinone; 9-hydroxy-1,4-anthraquinone; and ...
Christopher A. Drummond +4 more
doaj +1 more source

