| L-天冬酰胺 | CP2020 | EP11 | USP2022 | AJI92 | FCC11 | 
| 含量 | ≥98.0% | 99.0~101.0% | 98.0-101.5% | 99.0-101.0% | 98.0-101.5% | 
| 酸度 | / | 4.0-6.0 | / | 4.4-6.4 | / | 
| 比旋度[a]D20 | +31.0°-+35.0° | +33.7-+36.0 | +33.0°-+36.5° | +34.2°-+36.5° | +33.0°-+36.5° | 
| 比旋度[a]D25 | / | / | / | / | / | 
| 溶液外观 | / | clear & colorless | / | / | / | 
| 透光 | ≥98.0% | / | / | ≥98.0% | / | 
| 铅 | / | / | ≤5PPM | / | / | 
| 氯化物 | ≤0.005% | ≤0.02% | / | ≤0.02% | / | 
| 铵盐 | ≤0.1% | ≤0.1% | / | ≤0.1% | / | 
| 硫酸盐 | ≤0.005% | ≤0.02% | / | ≤0.02% | / | 
| 铁盐 | ≤0.001% | ≤10PPM | / | ≤10PPM | / | 
| 重金属 | ≤0.001% | / | / | ≤10PPM | ≤5PPM | 
| 砷盐 | ≤0.0001% | / | / | ≤1PPM | / | 
| 其他氨基酸 | ≤0.5% | Impurity A ≤ 0.5% Impurity C ≤ 0.1% Each impurity ≤ 0.05% Total impurity≤ 0.8%  | Total impurities≤ 1.0% | conform | / | 
| 茚三酮活性物质 | / | / | / | / | / | 
| 干燥失重 | 11.5%~12.5% | 10.5-12.5% | 11.5-12.5% | 11.5-12.5% | 11.5-12.5% | 
| 炽灼残渣 | ≤0.10% | ≤0.10% | ≤0.10% | ≤0.10% | ≤0.10% | 
| 总菌 | ≤ 500 CFU/g | ≤ 500 CFU/g | ≤ 500 CFU/g | ≤ 500 CFU/g | ≤ 500 CFU/g | 
| 霉菌&酵母菌 | ≤ 50 CFU/g | ≤ 50 CFU/g | ≤ 50 CFU/g | ≤ 50 CFU/g | ≤ 50 CFU/g | 
| 致病菌 | 克罗诺杆菌 /肠杆菌 /沙门氏菌 /蜡样芽胞杆菌 /梭状芽胞杆菌 (可根据要求检测)  | ||||