Carboxylic Acids

<p>H-Phe-Leu-Arg-Phe-NH2 acetate salt is a peptide that has been shown to inhibit neuronal activity in the Xenopus oocyte. This inhibition is biphasic and can be reversed by the addition of an excess of glutamate. It has been shown to have an inhibitory effect on the release of neurotransmitters from the isolated heart, ganglia, and subesophageal ganglion. The sequence of H-Phe-Leu-Arg-Phe-NH2 acetate salt has been determined as carboxy terminal. The physiological effects of H-Phe-Leu-Arg-Phe-NH2 acetate salt are related to its receptor binding properties.</p>

<p>Phosphomolybdic acid hydrate is a molybdenum-containing compound that exhibits biological activity. It has been found to have an effect on water permeability and the biological sample, which can be detected by synchronous fluorescence. The electrochemical impedance spectroscopy can be used to measure the effects of phosphomolybdic acid hydrate on energy metabolism. This compound has also been shown to act as a catalyst in analytical methods, such as laser ablation, and can be used in a model system for hydrogen bonding interactions with zirconium oxide.</p>

<p>Naphthenic acid is a metal chelate that is used in synchronous fluorescence spectroscopy. It has been shown to have biodegradation properties and can be used as an indicator for water quality. Naphthenic acid has been found to be a potent inhibitor of corrosion and is often used as an additive to petroleum products, such as gasoline, that are made from crude oil. Naphthenic acid also has acute toxicities and can cause toxicity studies on humans. It is able to inhibit energy metabolism in cells by binding to the mitochondrial membrane, which may be due to its ability to bind with benzalkonium chloride. Naphthenic acid can also be used for analytical methods, such as electrochemical impedance spectroscopy, because it has high sensitivity and specificity.</p>