Our data demonstrate that S. officinalis, E. globulus, C. forskohlii, A. uva-ursi, C. chinensis, T. diffusa, A. californica, A. sativum, and L. tridentata all show promising direct antimicrobial activity against S. aureus. For many of these botanicals, strong bacteriocidal activity was observed at higher concentrations, but even at lower concentrations, bacteriostatic activity was evident. Other botanicals including B. vulgaris, Baptisia tinctoria, and Glycyrrhiza glabra showed moderate activity against S. aureus, while Schisandra chinensis, Echinacea angustifolia, and Polygonum multiflorum were shown to be ineffective.

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Experimental procedures for synthesizing polymers and model compounds. 4-(2-pyridin-4-yl-vinyl)-phenol (9). This was synthe-5 sized in 22% yield from 4-picoline (16.115 g, 173.4 mmol) and 4-hydroxy-benzaldehyde (17.964 g, 147.2 mmol). R F = 0.34 (90/10 CH 2 Cl 2 /MeOH); 1 H NMR (300 MHz, DMSO-d 6 ) δ 6.80 (d,

The preparation and characterisation of a series of hydrogen bonded liquid crystalline dimers containing benzoic acid, alkanoic acid and phenol donors and alkoxy-stilbazole or alkoxy-4-pyridone hydrogen bond acceptors are reported. These heterodimers possess strong intermolecular donor-acceptor hydrogen bonding. The heterodimers, as well some of the individual components used in their preparation, possess liquid crystalline phases.

Energy released from beta emission causes molecules that incorporate tritium (3H) and carbon‐14 (14C) atoms to be less stable than their stable labeled counterparts, thus making radiolabeled compounds prone to self‐radiolysis. This literature review examines the stability of organic compounds incorporating 3H and 14C atoms and discusses stability of the compound with respect to functional groups within the radiolabeled molecules. The goal of this paper is to serve as a reference for the stability of radiolabeled compounds.