| 色譜級 | HPLC | |
| 純度 | Purity(GC) | ≥99.9% |
| 紅外光譜 | Identity(IR) | Conforms(合格) |
| 蒸發殘渣 | Residue on evaporating | ≤2.0mg/L |
| 水分 | Water | ≤300ppm |
| 酸度 | Acidity | ≤0.0002meq/g |
| 堿度 | Alkalinity | ≤0.0002meq/g |
| 透過率 | Transmission | |
| -at 280nm | ≥70% | |
| -at 290nm | ≥80% | |
| -at 310nm | ≥89% | |
| -at 320nm | ≥93% | |
| -from 350nm | ≥99% | |