Specification Test Results
| Appearance | White Crystalline powder |
| Infrared spectrum | Conforms |
| Water | 7 to 9 % |
| Solubility | (10 % in water) Clear colorless |
| UV | (0.25 M in water) 1 cm cell vs HPLC-grade water |
| UV | at 200 nm A: ≤0.3 |
| UV | at 210 nm A: ≤0.2 |
| UV | at 220 nm A: ≤0.1 |
| UV | at 230 nm A: ≤0.075 |
| UV | at 240 nm A: ≤0.05 |
| UV | at 250 nm A: ≤0.05 |
| Titration after Ion exchange | ≥97.5 % (On dry substance) |