Until recently no accurate method existed for the quantitative determination of small amounts of tartaric acid in the urine. In 1931 Underhill, Peterman, and Krause (1) reported a calorimetric method based upon the reaction between metavanadates and tartaric acid in which a golden red color results. We are able to report upon its accuracy, for this identical method was developed independently b...

Until recently no accurate method existed for the quantitative determination of small amounts of tartaric acid in the urine. In 1931 Underhill, Peterman, and Krause (1) reported a calorimetric method based upon the reaction between metavanadates and tartaric acid in which a golden red color results. We are able to report upon its accuracy, for this identical method was developed independently b...

Description of materials and methods, authentic, and standard comparison NMR spectra, mass spectrometry data of isolated compounds, experimental comparison NMR spectra, quantitative NMR information, calculated yields, and chemical shift information (corrected).

Two series of lanthanide-containing metal–organic frameworks (Ln-MOFs) the general formula {[Ln(HIDA)2H2O]ClO4·H2O}n (Ln = La (1), Nd (2), Eu (3), Gd (4), Tb (5), Eu:Tb (6); H2IDA iminodiacetic acid) and [Ln(TT) (HTT) (H2O)3]n (7), (8), (9), Dy (10), (11); H2TT tartaric were synthesized by reacting Ln(ClO4)3 with acid L-tartaric acid, respectively. All compounds structurally characterized singl...

When the compilers of the British Pharmacopoeia laid clown the standard of purity necessary for potassium antimonyl tartrate, they expected that the drug would be used only for external application or in minute doses by the mouth, and they did not anticipate that it would be poured in comparatively large doses directly into the patient's circulatory system. Had they done so, they would doubtles...

This study was aimed to develop level A, B and C in vitro-in vivo correlation (IVIVC) for encapsulated metoprolol tartrate (T1, T2 and T3 having metoprolol tartrate/polymer ratio of 1: 1, 1: 1.5 and 1: 2,w/w). The in vitro data were correlated with in vivo data. For level A IVIVC, drug absorption data were calculated using Wagner-Nelson method. In addition, convolution approach was used to appr...

The crystal structure of recombinant rat prostatic acid phosphatase in complex with the inhibitor L(+)-tartrate was determined to 3-A resolution with protein crystallographic methods. The inhibitor binds at the carboxyl end of the parallel strands of the alpha/beta domain. One of the carboxyl groups of the tartrate molecule interacts with the conserved residues Arg-11, His-12, and Arg-15, which...

The acidity constants of eight macrolides (erythromycin, roxithromycin, oleandomycin, azithromycin, josamycin, tylosin tartrate, tilmicosin and spiramycin) have been determined in acetonitrile-water binary mixtures (30%, 40% and 50% (v/v)) by spectrophotometric method. The pKa's available in literature determined by various methods are compiled in comparison with the value of this work. These r...