we offer alpha keto analogue raw material and formulation Alpha keto analogue of Amino Acids, cal. Salt Calcium-3-methyl-2-oxovalerate (a-ketoanalogue of isoleucine, Calcium salt) , Calcium-4-methyl-2-oxovalerate (a-ketoanalogue of leucine, Calcium-salt), Calcium-2-oxo-3-phenylpropionate (a-ketoanalogue of phenylalanine, Calcium-salt), Calcium-3-methyl-2-oxobutyrate (a-ketoanalogue of valine, Calcium-salt) Calcium-DL-2-hydroxy-4-(methylthio)-butyrate a-hydro xyanalogue of methionine, Calcium salt)