نتایج جستجو برای: 4 chloro 7 nitrobenzofurazan

تعداد نتایج: 1703006  

Journal: :Acta chimica Slovenica 2011
Satyendra N Shukla Pratiksha Gaur Harpreet Kaur Radhey S Srivastava

Synthesis and characterization of seven ruthenium (II) and ruthenium (III) chloro sulphoxide complexes with 1, 2, 3-benzotriazole are reported. Three different formulations exist: [cis, fac-RuCl2(so)3(btz)]; [trans-RuCl2(so)3(btz)] and [trans-RuCl4(so)(btz)]-[X]+; where so=dimethylsulphoxide/ tetramethylenesulphoxide; btz = 1, 2, 3-benzotriazole and [X]+ = [(btz)H]+ or Na+. These complexes were...

Journal: :Current protocols in toxicology 2008
Leslie B Poole

Protein sulfenic acids are reactive, reversibly oxidized cysteinyl residues with roles in redox catalysis and regulation. Detection and quantification of these species in proteins is accomplished through chemical modification by reagents such as 7-chloro-4-nitrobenzo-2-oxa-1,3-diazole (NBD chloride), 2-nitro-5-thiobenzoate (TNB), dimedone, or derivatives of dimedone, followed by UV-visible spec...

2017
He Zhao Juehua Wang Di Zhang Qin Dai Qingzhen Han Penghui Du Chenming Liu Yongbing Xie Yi Zhang Hongbin Cao Zhuangjun Fan

Carbon-based metal-free catalyst has attracted more and more attention. It is a big challenge to improve catalytic activity of metal-free catalyst for decomposition of H2O2 to produce hydroxyl radical (HO•). Here, we report chloro-benquinone (TCBQ) modified on graphene oxide (GO) as metal-free catalyst for strong promotion of HO•. By the incorporation of GO, the HO• production by H2O2 and TCBQ ...

2013
Susanne Bickel-Sandkötter Kordula Esser M artina Horbach

The addition o f 7-chloro-4-nitrobenzofurazan to isolated and activated CF, creates a com­ pletely changed binding stoichiometry and subunit-distribution o f bound modifier in contrast to the binding pattern in not-activated CF,. The activation o f CF, by dithiothreitol and heat results in the accessibility o f three additional tyrosines in ß-subunits and one additional tyro­ sine in a-subunits...

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