Harry G. Brittain's Analytical Profiles of Drug Substances and Excipients, Vol. PDF

By Harry G. Brittain

Even though the professional compendia outline a drug substance as to identification, purity, energy, and caliber, they in general don't supply different actual or chemical info, nor do they record tools of synthesis or pathways of actual or organic degradation and metabolism. Such info is scattered through the medical literature and the records of pharmaceutical laboratories. Analytical Profiles of Drug elements and Excipients, brings the most recent info jointly in a single source.•Represents a vital contribution to the perform of pharmaceutical research• provides a great assessment of actual, chemical, and biomedical houses of a few usually pharmaceuticals• each one quantity within the sequence features a cumulative index

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Even supposing the reliable compendia outline a drug substance as to identification, purity, power, and caliber, they often don't offer different actual or chemical info, nor do they checklist tools of synthesis or pathways of actual or organic degradation and metabolism. Such info is scattered during the clinical literature and the records of pharmaceutical laboratories.

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High resolution NMR studies, in combination with molecular mechanics, were performed to unequivocally assign the prochiral B-protons for the phenylalanine sidechain and to define the shape of the sweet receptor [49]. The previous assignment [48] of the NMR signals for the 13-protons of phenylalanine was shown to be in error. The 13C-NMRspectrum of aspartame was also determined for the solid state of both hemihydrate Forms I and II [23]. Form I gave single peaks for each carbon atom, indicating that only one crystallographically nonequivalent site was present in the unit cell.

Pharm. , 80, 674-676 (1991). 40. L. Ho, A. K. Sugden, Int. J. , 107, 199-203 (1994). 41. F. Tateo, L. Triangeli, E. Ciserchia, R. Nicoletti, and F. Berte, Boll. Chim. , 125, 404-409 (1986). 42. A. , Wiley-Interscience, New York, PP. 147-150 (1982). 43. S. Takahashi, E. Suzuki, and N. Nagashima, Bull. Chem. Soc. , 59, 1129-1132 (1986). 44. M. Maheswaran and S. Divakar, Indian J. , 30A, 30-34 (1991). 45. D. A. J. B. W. H. Perrin, Int. J. , 86, 263-265 (1992). 46. A. H. Schulpis, G. Reclos, and G.

A Diluent reagent is prepared as a 9:1 mixture of water and methanol. 3, diluting with methanol to volume, and mixing. Adjustments in the composition may be made if required by the System Suitability requirements. A Standard Solution is prepared by dissolving an accurately weighed quantity of USP Aspartame Related Compound A RS in Diluent, and then diluting quantitatively with Diluent to obtain a solution having a known concentration of about 75 ~tg/mL. The Test Solution is prepared by transferring 50 mg of the test article (accurately weighed) to a 10-mL volumetric flask, dissolving in and diluting with Diluent to volume, and mixing.

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