| product line | BioUltra |
| assay | ≥99.0% (T) |
| optical activity | [α]20/D −31.5±0.5°, c = 10% in 1 M NaOH |
| total impurities | insoluble matter, passes filter test |
| pH | 3.0-4.5 (25 °C, 0.01 M in H2O) |
| solubility | H2O: 0.01 M at 20 °C, clear, colorless |
| anion traces | chloride (Cl-): ≤50 mg/kg |
| | sulfate (SO42-): ≤50 mg/kg |
| cation traces | Al: ≤10 mg/kg |
| | As: ≤0.1 mg/kg |
| | Ba: ≤5 mg/kg |
| | Bi: ≤10 mg/kg |
| | Ca: ≤50 mg/kg |
| | Cd: ≤5 mg/kg |
| | Co: ≤5 mg/kg |
| | Cr: ≤5 mg/kg |
| | Cu: ≤5 mg/kg |
| | Fe: ≤10 mg/kg |
| | Li: ≤5 mg/kg |
| | Mg: ≤5 mg/kg |
| | Mn: ≤5 mg/kg |
| | Mo: ≤5 mg/kg |
| | Na: ≤50 mg/kg |
| | Ni: ≤5 mg/kg |
| | Pb: ≤5 mg/kg |
| | Sr: ≤5 mg/kg |
| | Zn: ≤5 mg/kg |
| λ | 0.01 M in H2O |
| UV absorption | λ: 260 nm Amax: 0.015 |
| | λ: 280 nm Amax: 0.013 |
