【分子式 】 : C4H7NO4
Test Items项目 | Specification质量指标 |
Assay 含量 | ≥98.5% |
Characteristic性状 | 无色结晶或结晶性粉末,味微酸 |
Specific rotation[a]D比旋度 | +24.0°~ +26.0° |
Identification 鉴别 | As per CP(咨询特价) |
PH酸度 | 2.0~4.0 |
Transmittance溶液透光率 | ≥98.0% |
Chloride氯化物 | ≤0.02% |
Sulfate硫酸盐 | ≤0.02% |
Ammonium铵盐 | ≤0.02% |
Other amino acids其他氨基酸 | ≤0.5% |
Loss on drying干燥失重 | ≤0.2% |
Residue on ignition炽灼残渣 | ≤0.1% |
Iron铁盐 | ≤0.001% |
Heavy metals(as Pb)重金属 | ≤10ppm |
Arsenic砷盐 | ≤0.0001% |
Pyrogen热源 | As per CP(咨询特价) |