[O-2].[Ca+2:2].[NH2:3][C@H:4]([C:10]([OH:12])=[O:11])[CH2:5][CH2:6][CH2:7][CH2:8][NH2:9].O>CCCCCC>[NH2:3][C@H:4]([C:10]([O-:12])=[O:11])[CH2:5][CH2:6][CH2:7][CH2:8][NH2:9].[Ca+2:2].[NH2:3][C@H:4]([C:10]([O-:12])=[O:11])[CH2:5][CH2:6][CH2:7][CH2:8][NH2:9]5.6 grams (0.1 Mole) of calcium oxide and 29.2 grams (0.2 Mole) of lysine were placed into a beaker provided with a reflux condenser and a Dean Stark water trap. 100 ml hexane was added and the mixture was stirred and boiled at atmospheric pressure for 5 hours. The reaction mixture was cooled, and was thereafter filtered yielding 32.8 grams of calcium lysinate having the physical characteristic of a fine white powder. In the course of reaction about 3.6-3.8 ml water was removed from the reaction media and acquired in the Dean Stark apparatus.
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