White or almost white, crystalline or amorphous powder.
Molecular Formula: C11H12N2O2
Molecular Mass: 204.23 g/mol
CAS: 73-22-3
Specification meets or exceed the current AJI, USP, (EP) spec
| ITEM | AJI | USP | EP |
| Identification | Infrared Absorption spectrum | ||
| Specific Optical Rotation | -29.4° ~ -32.8° | -30.0° ~ -33.0° | |
| State of Solution | - | Soluble in water, alkali solutions and in dilute mineral acids | |
| Chloride | ≤0.05% | 200ppm | |
| Ammonium | - | ≤200ppm | |
| Sulfate | ≤0.03% | 300ppm | |
| Iron | ≤30ppm | 20ppm | |
| Heavy Metals | ≤15ppm | ≤10ppm | |
| Arsenic | - | - | |
| Other Amino Acid | - | - | |
| Loss on Drying | ≤0.3% | ≤0.5% | |
| Residue on Ignition | ≤0.1% | ≤0.1% | |
| Assay | 98.5~101.5% | 98.5 ~ 101.0% | |
| pH | 5.5 ~ 7.0 | - | |
| Organic Volatile Impurities | Meet the requirements | - | |
In 25kgs fiber drum double polyethylene bags inside. Preserve in well-closed containers at controlled room temperature
Shelf Life : 1 year