we supplier of alpha keto analogues of five essentail amino acid Calcium-methyl-2-oxovaleric acid (a-ketoanalogue of leucine, Ca-salt), CAS-51828-95-6, Calcium-3-methyl-2-oxobutyric acid (a-ketoanalogue of valine, Ca-salt), CAS-51828-94-5, Calcium-2-oxo-3-phenylpropionic acid (a-ketoanalogue of phenylalanine, Ca-salt), CAS-51828-93-4, Calcium 3-methyl-2-oxovaleric acid (a-ketoanalogue of isoleucine, Ca-salt), CAS-66872-75-1, Calcium-DL-2-hydroxy-4-(methylthio)-butyric acid (a-hydroxyanalogue of methionine), CAS-4857-44-7