This invention belongs to the field of
organic synthesis technology, specifically relating to a
creatine glycinate and its preparation method, comprising the following steps: pretreatment,
drying creatine monohydrate, passing
glycine through a 100-mesh
sieve and storing it in a
desiccator for later use, and selecting a reaction
solvent;
raw material dissolution, adding the reaction
solvent to a reaction vessel, starting stirring and heating, adding
creatine monohydrate, and stirring at a constant temperature until completely dissolved, finally obtaining a creatine solution; complexation reaction, adding
glycine, increasing the stirring rate and heating after the addition is complete, maintaining the temperature for the complexation reaction, using staged stirring until the complexation reaction is complete; after the reaction is complete, using a gradient cooling method;
crystallization and
ripening, followed by constant temperature and low-speed stirring for 2 hours, then allowing the crystals to settle completely; after
filtration,
vacuum drying is performed to finally obtain creatine glycinate. This application solves the problems of uneven reaction, poor
crystal quality, and low purity and yield in existing processes, achieving efficient and high-quality preparation of creatine glycinate.