White crystals or crystalline powder; slightly sweet taste. Very soluble in formic acid, soluble in water; practically insoluble in ethanol and ether.1)Important nutrition intensifier,(2)The ingredient of compound amino acid transfusion(3)The material of half amide(4)Used in feed stuff. it is essential for human body, it can be used as nutrition intensifier,pharm-grade products can be used in compound amino acid transfusion and amino acid preparation.
| ITEMS | STANDARDs |
| Appearance | White to light brown, crystal powder |
| Assay(%) | 98.5 Min |
| Specific rotation(°) | -26 ~ -29 |
| Loss on drying(%) | 1.0 Max |
| Residue on ignition(%) | 0.5 Max |
| Heavy metals(ppm) | 20 Max |
| As(ppm) | 2 Max |