| 色谱级 | HPLC | |
| 纯度 | Purity(GC) | ≥99.9% |
| 红外光谱 | Identity(IR) | Conforms(合格) |
| 蒸发残渣 | Residue on evaporating | ≤5.0mg/L |
| 水分 | Water | ≤200ppm |
| 酸度 | Acidity | ≤0.0005meq/g |
| 碱度 | Alkalinity | ≤0.0002meq/g |
| 透过率 | Transmission | |
| -at 270nm | ≥10% | |
| -at 275nm | ≥50% | |
| -at 290nm | ≥80% | |
| -at 300nm | ≥90% | |
| -from 330nm | ≥98% | |