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: any of numerous acids that include some which are the building blocks of proteins and are made by living cells from simpler compounds or are obtained in the diet Medical Definition amino acid noun : an amphoteric organic acid containing the amino group NH2 especially : alpha-amino acid...
Amino acid, any of a group of organic molecules that consist of a basic amino group, an acidic carboxyl group, and a unique organic side chain. The term amino acid is short for α-amino [alpha-amino] carboxylic acid. Examples of amino acids include glyci
Amphoteric bicyclic amino acidsAmphoteric bicyclic amino acids The compounds have the formulae: and are useful intermediates in the synthesis of bactericides. Prepn is described.CLARK SHEEHAN,JOHN
Another important feature of free amino acids is the existence of both a basic and an acidic group at the α-carbon. Compounds such as amino acids that can act as either an acid or a base are called amphoteric. The basic amino group typically has a pKa between 9 and 10, while the aci...
partial esters of glycerol and/or sorbitan with unsaturated, linear or saturated, branched fatty acids having 12 to 22 carbon atoms and/or hydroxycarboxylic acids having 3 to 18 carbon atoms, and the adducts thereof with 1 to 30 mol of ethylene oxide; ...
The donor–acceptor interactions in three model systems: water–glycine (a), water–glycine–KI3 (b), water–glycine–KI3–LiCl–ethanol (c) were investigated by UV-, IR-spectroscopy, and the quantum-chemical DFT-B3PW91/midi method. UV- and IR spectrum data for the considered systems ...
The effect of the amphoteric properties of amino acids in the zwitterionic form on the structure of iodine complex compounds in aqueous solutionsYuldashevaG. A.ZhidomirovG. M.LeszczynskiJ.IlinA. I.OPTICS COMMUNICATIONS
The invention further provides the copolymers of the formula (4) preparable by the process presented, and the derivatives thereof which bear ammonium groups and have been quaternized with acids and/or alkylating agents.It is familiar to the person skilled in the art that the compounds are present...
procedure for the treatment of amphoteric amino acidsE C * ESKILSSON