Examples of carboxylic

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Among the compounds identified were simple nitriles, alcohols, halocarbons, alkyl thiols, and carboxylic acids (including formic and acetic).
Se-stimulated seeds produced great amounts of both ethylene and 1-aminocyclopropane-1-carboxylic acid, which correlated with the process of germination.
The effectiveness of the method used for trapping carboxylic acids was verified by spiking the collection tubes with butanoic, hexanoic and lactic acid (2 mg each) in the laboratory.
Stearic acid was chosen because of its relatively ubiquity as a biomolecule, and because of its carboxylic acid functionality and the ability to form organic salts (magnesium stearate).
We have shown experimentally that radiation-induced reactions in carboxylic acids are an example of preferential synthesis, as long as the acid is adsorbed on a solid surface.
Therefore, carboxylic acids are likely to constitute one of the attractive stimuli present on a previously worn stocking.
Utilizing methanol and ethanol as the primary organic precursors, catalytic reaction products observed include alkanes, branched-phenyl compounds, carboxylic acids, and methyl-esters.
Perhaps one firm indicator for abiogenic synthesis is forthcoming by direct comparisons of a particular, less abundant, class of carboxylic acid with the amino acids.
These were the sugar alcohols, carboxylic acids, amino acids and sugar phosphates.
To this end, carboxylic acids were adsorbed in a clay mineral and the systems were exposed to radiation.
To that end we choose a simple chemical system : a carboxylic acid adsorbed in a clay mineral and exposed to radiation.
In the case of carboxylic acids, decarboxylation predominates when the clay is present, whereas other reactions take place when it is not.
It is assumed that a carbamoylated carboxylic acid would not exist in the reaction mixture because of its low stability.
It yields a relatively high amount of amino acids, purines bases and carboxylic acids.
Modeling vibrational spectra of amino acid side chains in proteins : the carbonyl stretch frequency of buried carboxylic residues.
In the first, the sample is co-crystallized with an energy-absorbing compound, such as an aromatic amine or carboxylic acid.
Also, carboxylic acids can enter the interlamellar space as neutral polar molecules, where they form hydrogen bonds with water molecules.
The organic material found in carbonaceous chondrites consist of amino acids, carboxylic acids and sugar derivatives.

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