a new series of noncyclic ionophores containing two to four furan units (ia to iiib) i.e. 1,1-difurylethane (ia), 2,5-bis(methylfurfuryl)furan (iia) and 1,1’ ethyledenebis[5-(methylfurfuryl)furan] (iiia), 2,2-difurylpropane (ib), 2,5-bis (dimethylfurfuryl)furan(iib), 2,2’-isopropylidenebis[5-(dimethylfurfuryl)furan] (iiib) have been synthesized by the condensation of furan with acetaldehyde and...

The title compound, [La(C(6)H(2)N(3)O(7))(3)(C(2)H(6)O)(3)]·C(15)H(12)N(4), has two mol-ecular building blocks, namely the neutral mononuclear adduct of lanthanum picrate with ethanol [i.e. La(pic)(3):EtOH (1:3); La(pic)(3) = lanthanum picrate and EtOH = ethanol] and the oligodentate aromatic nitro-gen base tri-2-pyridylamine (tpa). The asymmetric unit contains two formula units. The compound w...

The defects inherent in the older methods (l-5) for isolating glycine from protein hydrolysates may be overcome by the direct precipitation of glycine from such mixtures as a complex salt with copper picrate (6). This reagent has been subsequently employed with success for the removal of glycine from the hydrolytic products of proteins prior to the isolation of other amino acids (7). Difficulti...

The title compound, C(6)H(13)ClNO(+)·C(6)H(2)N(3)O(7) (-), was synthesized from picric acid and 4-(2-chloro-ethyl)morpholine. The crystal structure is stabilized by C-H⋯O and N-H⋯O hydrogen-bond inter-actions.

The rate of the Jaffé reaction depends on the concentration of sodium hydroxide; the pseudo-first-order rate constant of the reaction, at 37 degrees C in 10 mmol/L picrate solution, is 0.004 mmol/L. We formulated an automated method to determine urinary creatinine directly without manual sample dilution. The conditions are as follows: 10 mmol/L picrate and 60 mmol/L sodium hydroxide (final conc...

A case of severe methanol intoxication (1300 mg/L) was associated with markedly increased serum creatinine (490 mg/L) despite normal urea values and the absence of any other signs of renal disease. These values declined progressively to normal, and the patient recovered with no visual impairment. Additional laboratory experimentation suggested that the high creatinine value was probably ascriba...

L-valinium picrate, an organic material, was synthesized and grown by solution growth method. Cell parameters of the grown crystals were obtained from the single crystal X-ray diffraction analysis and the presence of functional groups was identified by FTIR study. The quality of the crystal was also examined by high-resolution X-ray diffraction study. Its optical properties were examined by UV-...

The asymmetric unit of the title co-crystal salt, 1H-imidazol-3-ium 2,4,6-tri-nitro-phenolate monohydrate, C4H7N2+·C6H2N3O7-·H2O, contains one imidazolium cation, one picrate anion and one solvent water mol-ecule of crystallization. The phenolic proton has been transferred to an imidazole N atom. In the crystal, the components are linked by N-H⋯O and O-H⋯O hydrogen bonds into a three-dimensiona...

IN THE CRYSTAL STRUCTURE OF THE TITLE COMPOUND [SYSTEMATIC NAME: 1-methyl-piperazine-1,4-diium bis-(2,4,6-trinitro-phen-ol-ate)], C(5)H(14)N(2) (2+)·2C(6)H(2)N(3)O(7) (-), the ionic components are connected by relatively strong N-H⋯O hydrogen bonds into centrosymmetric six-membered conglomerates, which comprise two dications and four anions. Besides Coulombic inter-actions, only weak C-H⋯O inte...