Results 71 to 80 of about 1,037 (167)
Ueber die Lichtempfindlichkeit des Purpurins [PDF]
Berichte der deutschen chemischen Gesellschaft, 1877 n ...
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Química Nova, 2014 Turnera subulata Sm., known as "Chanana" or "flor-do-Guarujá" in Brazilian folklore, is a plant species belonging to the subfamily Turneroideae of family Passifloraceae, which is used for various medicinal purposes in Brazil.
Severino Gonçalves de Brito Filho +9 more
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Tautomerism of Anthraquinones: I. Purpurin and Anions Derived Therefrom
Russian Journal of Organic Chemistry, 2005 A procedure was proposed for quantitative analysis of tautomeric equilibria of organic compounds. Purpurin was found to exist mainly as 9,10-, 1,4-, and 1,10-anthraquinoid tautomers, its monoanion, as 1,10-anthraquinoid tautomer, the dianion, as 1,10- and 2,9-anthraquinoid tautomers, and the trianion, as 1,10-, 1,4-, and 2,9-anthraquinoid tautomers ...
Fain V.Ya., Zaitsev B.E., Ryabov M.A.
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PLoS ONE, 2015 Free iron typically leads to the formation of excess free radicals, and additional iron deposition in the liver contributes to the oxidative pathologic processes of liver disease.
Nikhil Baban Ghate +4 more
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Synthese des Xanthopurpurins und Purpurins [PDF]
Berichte der deutschen chemischen Gesellschaft, 1886 n ...
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Treatment of hydroxyquinone-containing wastewater using precipitation method with barium salt
Water Science and Engineering, 2019 Hydroxyquinone compounds, such as 1,4-dihydroxyanthraquinone and alizarin sulfonate, are widely used in dye manufacturing, pharmaceutical manufacturing, and other industries.
Qun-chao Wang, Shu-gen Liu, Hua-ping Gao
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Synthesis of molecular photoconverting systems based on tetraphenylporphyrin and purpurin 18
Тонкие химические технологии, 2010 Donor-acceptor systems based on 5-(p-aminophenyl)-10,15,20-triphenylporphyrin, purpurin 18 and 2-(2-hydroxyethyl)thio-3-methyl-1,4-naphthoquinone were synthesized to simulate the natural photoconverting systems. Their spectral properties were studied.
N. V. Konovalova +2 more
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A kinetic determination of lysine in pharmaceutical sample [PDF]
Journal of the Serbian Chemical Society, 2002 Akinetic method for the determination of micro quantities of the amino acid lysine (Lys) is described in this paper. The catalytic activity of cobalt in the reaction of the oxidation of purpurin (1,2,4-trihydroxyanthraquinone, PP) by hydrogen peroxide in
S. B. TOSIC +3 more
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NanomaterialsMost photosensitizers of interest for photodynamic therapy—especially porphyrinoids and chlorins—are hydrophobic. To circumvent this difficulty, the use of nanocarriers is an attractive strategy.
Isabelle Sasaki +8 more
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