4-benzoquinone(DDQ)
Method development, validation and determination of Alprazolam in its pharmaceutical dosage by 2,3 dichloro 5,6 dicyano 1,4 benzoquinone
... Alprazolam (Fig-I) is chemically 8-chloro-1-methyl-6-phenyl-4H-(1,2,4) triazolo (4,3a)1,4-benzodiazepine, which is a short acting anxiolytic drug [1]. It also possesses sedative, hypnotic, anticonvulsant, amnesic and ...
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A Simple Spectrophotometric Determination of Diclofenac Sodium in Commercial Dosage Forms using 2,3-Dichloro-5, 6-Dicyano-1,4-Benzoquinone (DDQ)
... A rapid, simple and sensitive spectrophotometric method has been developed for the determination of diclofenac sodium in pure and tablet formulations. The method depends on the charge–transfer complexation between ...
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SPECTROPHOTOMETRIC DETERMINATION OF GATIFLOXACIN WITH 2, 3 DICHLORO 5, 6 DICYANO 1, 4 BENZOQUINONE
... Gatifloxacin on oxidation with 2,3-dichloro 516-dicyano-1,4 benzoquinone (DDQ) in chloroform solution are added to stand for 10 minutes to complete the reaction. A stable orange – red coloured solution is ...
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SPECTROPHOTOMETRIC DETERMINATION OF TIZANIDINE WITH 2,3 DICHLORO 5, 6 DICYANO 1,4 BENZOQUINONE
... Tizanidine on oxidation with 2,3-dichloro 516-dicyano-1,4 benzoquinone (DDQ) in chloroform solution are added to stand for 10 minutes to complete the reaction. A stable orange – red coloured solution is developed ...
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Spectrophotometric Determination of Lamivudine Using Chloranilic Acid and 2,3 Dichloro 5,6 dicyano 1,4 benzoquinone (DDQ)
... A spectrophotometric method for the assay of lamivudine in pure form and in dosage form was developed in this study. The method was based on charge-transfer complex formation between the drug, which acted as n-donor ...
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Spectrophotometric and Thermodynamic Determination of Glibenclamide using 2,3 Dichloro 5, 6 dicyano 1,4 benzoquinone
... A spectrophotometric and thermodynamic method is described for the assay of glibenclamide. The method is based on charge transfer complexation reaction of glibenclamide as n-electron donor with ...
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SYNTHESIS, CHARACTERIZATION AND STUDY OF ANTIMICROBIAL ACTIVITY OF 2,6-DITERTIARY BUTYL-1,4-BENZOQUINONE HYDRAZONES
... Procedure for the Synthesis of A3: N'-(3,5-di-tert-butyl-4- oxocyclohexa-2,5-dienylidene)-4-hydroxybenzohydrazide 200 mg of 2,6-ditertiarybutyl-1,4-benzoquinone and 138 mg 4-hydroxy benzoic ...
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Reaction Model Correlation of the 2,3,5-Trimethyl-1,4-Benzoquinone Synthesis Using CuFe<sub>2</sub>O<sub>4</sub> Nano-Powder as the Catalyst - Volume 6 Number 1 (Feb. 2015) - IJCEA
... were found to be efficient catalysts in oxidizing 2,3,6-trimethylphenol (TMP) to 2,3,5-trimethylhydrogen- quinone(TMHQ) and 2,3,5-trimethyl-1,4-benzoquinone(TMBQ) in acidic reaction conditions. Also, recovery of ...
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SPECTROPHOTOMETRIC DETERMINATION OF CEFADROXIL WITH 2, 3 DICHLORO 5, 6 DICYANO 1, 4 BENZOQUINONE
... www.wjpr.net Vol 3, Issue 9, 2014. 1200 2.78 with 4 degrees of the freedom at 5% level of significance, Indicating that there is no significant difference between the proposed method and standard method. In ...
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The 1,4 benzoquinone-featured 5-lipoxygenase inhibitor RF-Id induces apoptotic death through downregulation of IAPs in human glioblastoma cells
... In order to confirm the apoptotic effect induced by RF-Id on U87MG cells, we examined its effects on cas- pase cascade by Western blotting technique (Fig. 4). In details, the cells treated for 24, 48, 72 h as ...
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Spray mechanism of the most primitive bombardier beetle (Metrius contractus)
... The secretion of M. contractus is unusual in that it contains conjugated dienes, of which one, (7Z,9Z)-7,9-heptadecadiene, figures prominently. This is striking not only because conjugated dienes are uncommon in nature, ...
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Binding Studies of Ruthenium (II) Polypyridyl Complex with Quinones in Aprotic Polar Medium
... benzoquinone, 2,6-dimethyl-1,4-benzoquinone show a steady state increase in the LC and MLCT absorption maximum, indicate the formation of ground state complex (Fig.4). Addition of ...
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A New Approach to the Total Synthesıs of (±)-Nordasycarpıdone by Rıng-closure wıth Tetrachloro-1,4-benzoquınone
... A new synthetic route for the (±)-nordasycarpidone was achieved in five steps with an overall yield of 41 %. This route involves ring closure and formation of 5 which has a methanoazocino[4,3- b]indole skeleton in the ...
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Effect of additional side groups on the vibrational frequencies of benzoquinone molecules
... 1, 4- Benzoquinone family (benzoquinone (BQ), duroquinone (DQ), plastoquinone (PQ), ubiquinone (UQ), and dimethoxy dimethyl benzoquinone ...
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4 Aminopyridinium 4 aminobenzenesulfonate 4 ammoniobenzenesulfonate monohydrate
... the 4-aminopyridinium cation agree with those previously reported (Chao & Schempp, 1977; Anderson et ...the 4-aminopyridine results in the widening of the C15—N3—C16 angle to ...neutral ...
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2 (4 Chlorophenyl) 4 oxo 4 phenylbutanenitrile
... Data collection: CrysAlis PRO Agilent, 2013; cell refinement: CrysAlis PRO; data reduction: CrysAlis PRO; programs used to solve structure: SHELXS2013 Sheldrick, 2008; programs used to r[r] ...
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4 (4 Aminophenylsulfonyl)anilinium toluene 4 sulfonate
... Dapsone [4-(4-aminophenylsulfonyl)aniline] is a very weak Lewis base which finds use as an anti-leprotic, anti-malarial and leprostatic drug (Wilson et al., 1991). The structure of four dapsone solvates are ...
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Anti-<em>p</em>-benzoquinone antibody level as a prospective biomarker to identify smokers at risk for COPD
... An ROC curve was generated, comparing the smokers with COPD and smokers without COPD based on serum anti-p-BQ antibody levels (in milligrams per deciliter) to illustrate the performance of the ELISA test (Figure ...
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Molecular docking studies of embelin (simple natural benzoquinone) and its derivatives as a potent tyrosinase inhibitor
... Docking was performed using Autodock 4. Autodock combines energy evaluation through precalculated grids of affinity potential employing various search algorithms to find the suitable binding position for a ligand ...
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4 Aminopyridinium 4 nitrobenzoate 4 nitrobenzoic acid
... of 4-amino- pyridine has been reported (Chao & Schempp, 1977; Anderson et ...of 4-aminopyridine with aromatic carboxylic acids, we report here the crystal structure of the title ...
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