Comparative Evaluation of Assay Methods Used to Determine Anthracene Derivatives in Herbal Substances and Herbal Medicinal Products [PDF]
Регуляторные исследования и экспертиза лекарственных средств, 2018 The use of assay methods with different test conditions for determination of anthracene derivatives in herbal substances and herbal medicinal products requires adjustment of the established limits for total anthracene derivatives content based on the ...
N. P. Antonova +4 more
doaj +2 more sources
9,10-Dioxa-1,2-diaza-anthracene derivatives from tetrafluoropyridazine
Beilstein Journal of Organic Chemistry, 2010 Reaction of tetrafluoropyridazine with catechol gives a tricyclic 9,10-dioxa-1,2-diaza-anthracene system by a sequential nucleophilic aromatic substitution ring annelation process, further extending the use of perfluoroheteroaromatic derivatives for the ...
Graham Pattison +5 more
doaj +3 more sources
Determination of Anthracene Derivatives in the Antihaemorrhoidal Medicinal Herb Mixture Proctophytol® Using the European Pharmacopoeia Method [PDF]
Регуляторные исследования и экспертиза лекарственных средств, 2020 Specialists in pharmacognosy are facing an important task of improving quality control methods for combination herbal medicinal products in order to enable reliable assessment of the content of active substances that are responsible for the drug’s ...
N. P. Antonova +5 more
doaj +2 more sources
Electronic structures and spectra of conducting anthracene derivatives [PDF]
Journal of the Serbian Chemical Society, 2008 Theoretical studies on anthracene and a series of its derivatives were performed using the AM1 method and DFT. Based on B3LYP/6-31G(d) optimized geometries, the electronic, IR and NMR spectra of anthracene oligomers were calculated using the Indo/Cis ...
Wang Zhongfa, Wu Shi
doaj +5 more sources
The estimation of anthracene derivatives in senna and rhubarb
Journal of Pharmacy and Pharmacology, 1965 Abstract An assay is described for the estimation of total anthracene derivatives in senna, rhubarb or their preparations. The extracted glycosides are oxidised by ferric chloride in aqueous solution followed by hydrolysis in acid solution. The free anthraquinones are estimated colorimetrically.
J Lemli
openaire +3 more sources
Developing 9,10-anthracene Derivatives: Optical, Electrochemical, Thermal, and Electrical Characterization. [PDF]
Materials (Basel), 2019 Anthracene-based semiconductors are a class of molecules that have attracted interest due to their air stability, planarity, potential for strong intermolecular interactions, and favorable frontier molecular orbital energy levels.
Vorona MY +7 more
europepmc +2 more sources
Double Ring-Closing Approach for the Synthesis of 2,3,6,7-Substituted Anthracene Derivatives [PDF]
, 2020 Anthracene derivatives have been used for a wide range of applications and many different synthetic methods for their preparation have been developed. However, despite continued synthetic efforts, introducing substituents in some positions has remained ...
Florian, Glöcklhofer +4 more
core +3 more sources
Structure-Property Correlations in Luminescent Anthracene Derivatives [PDF]
, 2021 This thesis aims to investigate the structure-property relationship of luminescent Anthracene derivatives. For this purpose, the Anthracene fluorophore was functionalized in various positions and with different substituents.
Schillmöller, Timo
core +1 more source
Chemistry Proceedings, 2023 The selectivity of photosensitizers for light activation is a key advantage in photodynamic therapy (PDT), allowing for precise targeting while sparing healthy cells.
Raquel C. R. Gonçalves +5 more
doaj +1 more source
Benchmarking the SPARC software program for estimating solubilities of naphthalene and anthracene in organic solvents [PDF]
, 2011 The SPARC software program was benchmarked for calculating the solubilities of two representative polyaromatic hydrocarbons (PAHs), naphthalene and anthracene, in a range of organic solvents at various temperatures.
Sierra Rayne, Kaya Forest
core +1 more source