1-(3-dimethylaminopropyl)-3-ethylcarbodiimide hydrochloride (EDC.HCl) is a very useful agent to form amide bonds (peptide bonds) in an aqueous medium. A simple and fast detection system was developed using the reaction with pyridine and ethylenediamine in acidic aqueous solution and spectrophotometric flow injection analysis. The absorbances were measured at 400 nm and the reaction was accelera...

Nonnenbruch and Szysaka quoted by Scherf and Schlackman (1946), demonstrated that intravenous injection of Theophylline Ethylenediamine increased the coagulability of blood in the rabits to a marked degree. Later on, other workers, notably Addicks and Meissner, again quoted by the same authors confirmed these observations both in animals and man, and as a result of these findings the drug was r...

Photolabile derivatives of D-Ala2-Leu5-enkephalin were prepared by synthetic procedures in which a 2-nitro-4-azidophenyl group is linked to the terminal carboxyl group of the enkephalin by means of an ethylenediamine or ethylenediamine beta-alanine spacer. These peptides bind to opiate receptors with nanomolar affinities and inhibit electrically stimulated contractions of the mouse vas deferens...

[M(sac)2(H2O)4].2H2O [sac = saccharinato anion, M Fe(II), Co(II), Ni(II), and Cu(II)], [M(sac)2(en)2].2H2O en ethylenediamine, Ni(II) Cu(II)] were prepared in an aqueous medium. The compounds are crystalline of different colors ambiently stable. By examining their physico-chemical properties relevant literature, the metal(II) ions both complexes octahedrally coordinated. In former by four neutr...

Two novel selenoarsenates, K3AsSe4 and K4As2Se5, were synthesized by the mild solvothermal reaction of potassium carbonate and arsenic and selenium powder in the presence of superheated ethylenediamine and structurally characterized by single-crystal X-ray diffraction. K3AsSe4 crystallizes in the orthorhombic space group Pnma (no. 62) with a = 9.4169(4), b = 10.9695(5), c = 9.7568(8) Å, Z = 4 a...