نتایج جستجو برای: 2 mercapto ethanol
تعداد نتایج: 2605049 فیلتر نتایج به سال:
The title compound, C(4)H(4)N(6)S(2), was synthesized by the reaction of 3-mercapto-1H-1,2,4-triazole with sodium hydrox-ide in ethanol. The mol-ecule possesses a crystallographically imposed twofold axis. Inter-molecular N-H⋯N hydrogen bonds link the mol-ecules into chains along the c axis.
Background: Brucellosis is one of the important zoonotic diseases with variety of symptoms and signs. Using of cost effective, easy and safe diagnostic methods in screening of brucellosis is an important priority. Several studies have been carried out to recognize appropriate diagnostic methods and each have reported different results. Aim: The aim of this study was to investigate the sensitivi...
A simple, efficient and environment-friendly procedure for the synthesis of 5-arylidene rhodanines derivatives via a Knoevenagel type reaction was developed using rhodanine, variety differently substituted aldehydes Na2SO3 as benign catalyst in ethanol. Selected were subjected to basic hydrolysis afford 2-mercapto-3-substituted-acrylic acids. The presence boronic acid group is well tolerated su...
Abstract: A procedure employed in the purification of anthranilate synhetase of Escherichia coli SJHI is described. The purified anthranilate synthetase appeared to be homogeneous when examined with poliacrylamide gel electrophoresis. Phenly-sepharose CL-4B and Blue dye sepharose were used for purification. A positive correlation was found between purification and ammonium sulfate especially us...
ABSTRACT. A novel series of antipyrinyl thienyl ketones 4a-c, 7a-c, 10a-c, and 13a-b was chemically synthesized through the cyclocondensation 4-chloroacetylantipyrine with various 2-substituted-thioacetanilide scaffolds, including 3-arylazo-4-mercapto-4-phenylamino-buten-2-ones, ethyl 2-arylazo-3-mercapto-3-phenylamino-acrylate, 2-cyano-3-mercapto-3-(phenylamino)-N-arylacrylamide, 4-mercapto-4-...
A total of 200 faecal samples, received between January and December 2004 from patients with acute diarrhoea, were of patients with acute brucellosis (69 families) who were referred to Boo-Ali Hospital (Southeast Iran) were enrolled in this study and serologically screened for brucellosis using the standard agglutination test (SAT). Titer of 160 or more was considered positive and diagnostic Ti...
New carboranyl thioethers 1-MeO(CH2)nS-1,2-C2B10H11 (n = 2, 3) were prepared by the alkylation of trimethylammonium salt 1-mercapto-ortho-carborane with 1-bromo- 2-methoxyethane and 1-bromo-3-methoxypropane, respectively. Their deboronation cesium fluoride in ethanol gave corresponding nido-carboranes Cs[7-MeO(CH2)nS-7,8-C2B9H11] 3). The reactions Cs[7-MeO(CH2)2S-7,8-C2B9H11] various nickel(II)...
Chem. Abstr. Serv. Reg. No.: 60-56-0 Deleted CAS Reg. Nos: 4708-61-6; 85916-84-3 Chem. Abstr. Name: 1,3-Dihydro-1-methyl-2H-imidazole-2-thione IUPAC Systematic Names: 1-Methylimidazole-2-thiol; 1-methyl-4-imidazoline-2thione Synonyms: 2-Mercapto-1-methyl-1H-imidazole; 2-mercapto-1-methylimidazole; mercazolylum; 1-methyl-1,3-dihydroimidazole-2-thione; N-methylimidazolethiol; 1-methyl-2-imidazole...
New antimony(III) bromide complexes with the heterocyclic thioamides, thiourea (TU), 2-mercapto-1-methylimidazole (MMI), 2-mercapto-benzimidazole (MBZIM), 2-mercapto-5-methyl-benzimidazole (MMBZIM), 5-ethoxy-2-mercapto-benzimidazole (EtMBZIM), 2-mercapto-3,4,5,6-tetrahydro-pyrimidine (tHPMT), 2-mercaptopyridine (PYT), 2-mercapto-thiazolidine (MTZD), 3-methyl-2-mercaptobenzothiazole (MMBZT), and...
Combinatorial chemistry was used to extend the knowledge of beer thiols by synthesizing 13 mercapto primary alcohols and 6 other compounds (mercapto ketones and corresponding alcohols). Their respective mass spectra, retention indices on two columns, odor descriptors, and best estimated-gas chromatography-lowest amounts detected sniffing (BE-GC-LoADS) are reported. The descriptor "cheese", comm...
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