Glycine is white monoclinic or hexagonal crystal, or white crystalline powder. Odorless, with a special sweet taste. Soluble in water, solubility in water: 25g/ 100mL at 25℃; 39.1g/100mChemicalbookl at 50℃; 54.4g/ 100mL at 75℃; It was 67.2g/100 mL at 100℃. Extremely insoluble in ethanol, about 0.06g dissolved in 100g anhydrous ethanol. Almost insoluble in acetone and ether.

Glycine is amino acid series of 20 members of one of the most simple in structure, also known as amino acetic acid, an amino acid that's not necessary for the human body, both acidic and basic functional groups in the molecule, in water solution as strong electrolyte, in strong polar solvent solubility is bigger, basic not soluble in nonpolar solvents, and has high boiling point and melting point, Glycine can show different molecular morphology by adjusting the acidity and alkalinity of aqueous solution. The glycine side bond is a hydrogen atom. Because of its alpha carbon and one hydrogen atom, glycine is not optically isomerized. Because glycine's side bonds are so small, it can take up space that other amino acids cannot, such as the amino acid inside the collagen helix. White crystal or light yellow crystalline Chemicalbook powder at room temperature. It has a unique sweet taste, which can moderate acid and alkali taste, cover up the bitter taste of saccharin in food and enhance sweet taste. If the amount of glycine consumed by the human body is too much, not only can not be absorbed by the human body, but also will break the absorption balance of amino acids and affect the absorption of other amino acids, resulting in nutritional imbalance and affect health. Glycine as the main raw material for the production of milk drinks, the normal growth of adolescents and children is easy to bring adverse effects. The density of 1.1607. Melting point 232~236℃ (decomposition). Soluble in water, insoluble in ethanol and ether. It can react with hydrochloric acid to form hydrochloride. It is found in the muscle of the dry inferior cargo. Can be made by the action of a chloroacetic acid and ammonium hydroxide, can also be hydrolyzed by gelatin, refined from.