The title compound, C(8)H(5)BrN(4)O(2)S, was synthesized by the reaction of 4-bromo-2-nitro-benzoic acid with thio-semi-carbazide. The dihedral angle between the thia-diazole and benzene rings is 40.5 (2)°. In the crystal, the strongest N-H⋯N inter-molecular hydrogen bond, between the amine group and one thia-diazole N atom, forms centrosymmetric dimers. The other amine H atom extends the supra...

The structure of the title compound, [Co(C(13)H(11)N(4)O)(2)(CH(3)OH)(2)], is a mononuclear six-coordinated octa-hedral cobalt(II) complex of C(i) mol-ecular symmetry. The Co(II) ion is coordinated by two N atoms and two O atoms from two 1,5-biphenyl-carbazide ligands, and two O atoms from two methanol molecules. Two diphenyl-carbazidate ligands and the central Co(II) ion form the basal plane, ...

A practical fluorescence-labeling method for sequencing small RNAs by the traditional 'direct read out' on polyacrylamide gel electrophoresis was established. The 3' terminus of RNA was oxidized into dialdehyde by sodium periodate and then labeled with fluorescein-5-thiosemicarbazide through the condensation reaction between carbazide and aldehyde. The fluorescence-labeled RNA was partially deg...

Reaction of 2-hydrazinocarbonyl-3-chloro-5-phenoxy-benzo[b] thiophene with different substituted phenyl isothiocyanate gave N-substituted arylthiosemi-carbazide derivatives (1a-h). 1,3,4-Thiadiazole derivatives (2a-h) were prepared by the cyclization of arylthiosemicarbazides (1a-h) with concentrated sulphuric acid. All the compounds were screened for their antitubercular activity against Mycob...

In this study, a new adsorbent, which was synthesized by using SBA-15Santa Barbara Amorphous. modified with 1,5-diphenyl carbazide, employed to extract cadmium (Cd) from aquatic systems. First, the sorbent identified via various characterization techniques, and then response surface methodology approach applied for modeling optimizing adsorption performance of sorbent. Under optimum conditions ...

A series of five-membered heterocyclic rings were synthesized by the reaction between benzoyl chloride and various chlolro-nitro-benzoyl chlorides and semi carbazide to form (C1- C7) compounds and was tested for their anti-inflammatory activity determined by rat-paw-oedema method. All the synthesis compounds have been characterized by (1)HNMR, IR and Mass spectral data. The compounds were purif...

The irreversible formation of stable glycosylated hemoglobin proceeds through a labile intermediate that is indistinguishable, by most methods, from the stable glycosylated product. The inclusion of the labile intermediate, which changes acutely with acute blood glucose changes, detracts from the utility of the assay as an index of chronic glucose concentration. We have developed a rapid, relia...

Bicarbonate ion, not dissolved CO(2) gas, is shown to increase 4- to 5-fold the rate of dichlorophenol indophenol reduction by isolated maize (Zea mays) chloroplasts. Glutaraldehyde fixed chloroplasts continue to exhibit bicarbonate-dependent 2,6-dichlorophenol indophenol reduction. Bicarbonate is shown to act close to the oxygen-evolving site, i.e. prior to the electron donation site of diphen...

Photoinhibition was studied in osmotically broken chloroplasts isolated from spinach leaves (Spinacia oleracea L.). Both whole chain electron transport (measured as ferricyanide-dependent O(2) evolution in the presence of NH(4)Cl) and photosystem II activity (measured as O(2) evolution in the presence of either silicomolybdate plus 3-(3,4-diphenyl)-1,1 dimethylurea or parabenzoquinone) showed s...