White or almost white crystalline powder or colorless crystals.
Molecular Formula: C9H11NO3
Molecular Mass: 181.19 g/mol
CAS: 60-18-4
Specification meets or exceed the current FCC, AJI, USP,(EP) spec
| ITEM | AJI | USP | EP |
| Identification | Infrared Absorption spectrum | ||
| Specific Optical Rotation | -11.3° ~ -12.1° | -9.8° ~ -11.2° | -11.0° ~ -12.3° |
| State of Solution | ≥ 95.0% | - | Soluble in water, alkali solutions and in dilute mineral acids |
| Chloride | ≤0.02% | ≤0.04% | 200ppm |
| Ammonium | ≤0.02% | - | ≤100ppm |
| Sulfate | ≤0.02% | ≤0.04% | 300ppm |
| Iron | ≤10ppm | ≤30ppm | 10ppm |
| Heavy Metals | ≤10ppm | ≤15ppm | ≤10ppm |
| Arsenic | ≤ 1ppm | - | - |
| Other Amino Acid | Not detected | - | - |
| Loss on Drying | ≤0.2% | ≤0.3% | ≤0.5% |
| Residue on Ignition | ≤0.1% | ≤0.4% | - |
| Assay | 99.0~100.5% | 98.5~101.5% | 99 ~ 101% |
| pH | 5.0 ~ 6.5 | - | - |
| 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