Results 141 to 150 of about 398 (162)
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Structures of umbelliferone and 7-ethoxycoumarin
Acta Crystallographica Section C Crystal Structure Communications, 1985Umbelliferone (U), C9H60 3, Mr= 162.1, monoclinic, P21/c, a = 3 . 8 9 2 ( 1 ) , b = 11.022(2), c = 1 6 . 7 2 2 ( 3 ) A , /3= 90.58 (2) ° , V = 7 1 7 . 3 ( 3 ) A 3, Z =4, D m=1.50, D x= 1 . 5 0 M g m -3, ; I , (CuKa)= 1.5418/k, a = 1.114 mm -1, F(000) = 336, T = 298 K, R = 0 . 0 4 2 for 1255 observed reflexions. 7-Ethoxycoumarin (7-O-ethylumbelliferone;
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Studies on glucoside intermediates in umbelliferone biosynthesis
Phytochemistry, 1965Abstract Two umbelliferone-producing glucosides have been found in Hydrangea macrophylla leaf extracts. By chromatographic characterization and comparison with the synthetic compounds, they have been identified as skimmin (7-β- d -glucosyloxycoumarin) and cis-2,4-di-β- d -glucosyloxycinnamic acid. Skimmin is by far the major component.
D.J. Austin, M.B. Meyers
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Influence of Umbelliferone on Glycoprotein Components in Diabetic Rats
Toxicology Mechanisms and Methods, 2007ABSTRACT Umbelliferone (7-hydroxycoumarin), a derivative of coumarin, is benzopyrone in nature, and it is present in the fruits of golden apple (Aegle marmelos Correa) and bitter orange (Citrus aurantium). The present study was designed with the objective of evaluating the effect of umbelliferone (UMB) on glycemic control and glycoprotein components in
B, Ramesh, K V, Pugalendi
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Biotransformation of umbelliferone by Panax ginseng root cultures
Tetrahedron Letters, 2002Panax ginseng root cultures biotransformed umbelliferone (1) to its 7-O-β-d-glucopyranoside (2), 7-O-β-d-glucopyranosyl (1→6) β-d-glucopyranoside (3), 7-O-β-d-xylopyranosyl (1→6) β-d-glucopyranoside (4) and 7-O-α-l-rhamnopyranosyl (1→2) β-d-glucopyranoside (5). The roots showed high glycosylation ability to the 7-hydroxycoumarin molecule.
Wei Li +4 more
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Investigation of Binding Properties of Umbelliferone (7Hydroxycoumarin) to Lysozyme
Journal of Fluorescence, 2012The binding interaction of lysozyme and umbelliferone (7hydroxcoumarin, 7HC) was investigated by UV-vis absorption and fluorescence quenching. It was obtained from fluorescence spectra that the fluorescence quenching of lysozyme by 7HC was probably a result of the formation of lysozyme-7HC complex and binding parameters were determined according to the
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Increased Excretion of Umbelliferone in Phenylketonuria
The Journal of Biochemistry, 1969M, Hattori, J, Onisawa, M, Goto
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Umbelliferone Ozonization, an Efficiently Chemiluminescent Reaction
Zeitschrift für Physikalische Chemie, 1975J. Nikokavouras +2 more
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β-Methyl-umbelliferon als fluorescierender Indikator
Fresenius' Zeitschrift für analytische Chemie, 1928C. Bülow, W. Dick
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pH Effects on fluorescence of umbelliferone
Analytical Chemistry, 1970David W. Fink, Walter R. Koehler
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