[CH3:1][N+:2]([CH2:5][C@H:6]([OH:11])[CH2:7][C:8]([O-:10])=[O:9])([CH3:4])[CH3:3].[NH2:12][C@H:13]([C:18]([O-:20])=[O:19])[CH2:14][C:15]([O-:17])=[O:16].[K+:21].[K+]>O>[NH2:12][C@H:13]([C:18]([O-:20])=[O:19])[CH2:14][C:15]([O-:17])=[O:16].[K+:21].[OH:11][C@H:6]([CH2:7][C:8](=[O:9])[O-:10])[CH2:5][N+:2]([CH3:4])([CH3:1])[CH3:3].[K+:21]An amount of 16.21 g of L-carnitine inner salt is dissolved in 30 ml of water; 17.32 g of potassium aspartate dissolved in 10 ml of water are added. The mixture is stirred up to complete dissolution. The solution is submitted to freeze drying; 33.5 g of L-carnitine potassium aspartate are obtained; the spectroscopic analyses confirm its structure.
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