## Abstract Carbonβ13 chemical shift assignments have been obtained for the naturally occurring __Cephalotaxus__ alkaloids, cephalotaxine, acetylcephalotaxine, harringtonine, isoharringtonine, drupacine and cephalotaxinone.
Molecular weight of heparin using 13C nuclear magnetic resonance spectroscopy
β Scribed by Umesh R. Desai; Robert J. Linhardt
- Publisher
- John Wiley and Sons
- Year
- 1995
- Tongue
- English
- Weight
- 441 KB
- Volume
- 84
- Category
- Article
- ISSN
- 0022-3549
No coin nor oath required. For personal study only.
π SIMILAR VOLUMES
## Abstract The ^13^C NMR spectra of several conjugated polyyneβaldehydes and ketones are compared with those of the corresponding alcohols. All data show considerable effects similar to those observed in conjugated polyenes.
## Multinuclear nuclear magnetic resonance (NMR) ( 1 H, 13 C, and 31 P) studies have been performed on aqueous solutions of lyophilysates of cell-free extract, epididymal fluid, and intact cells from caput and cauda regions of epididymis of sacrificed goats. Identification of low-molecular-weight
A noninvasive, in situ, in vivo, and anomer-specific method for studying membrane transport of sugars in bacteria is presented. High-resolution \({ }^{13} \mathrm{C}\) NMR was used to measure the distribution of \(\alpha\) - and \(\beta\)-xylose, maltose, Mes buffer, and ethanol in the extracellular
Glucose metabolism of human red blood cells was investigated using carbon-13 nuclear magnetic resonance spectroscopy under both oxygenated and nonoxygenated conditions. These results show that under oxygenated conditions reversal of 3-phosphoglyceraldehyde to glucose is in competition with its catab