| Specifications |
| Assay (HClO4 titration) |
Min 99% |
| Specific rotation |
+22.5 to + 24 deg |
| pH
2.5% solution |
5.5 - 6.5 |
| Loss on drying (at 105 deg C) |
Max 0.3% |
| Residue on ignition (as SO4) |
Max 0.1% |
| Chloride (Cl) |
Max 0.02% |
| Sulphate (SO4) |
Max 0.03% |
| Iron (Fe) |
Max 0.001% |
| Heavy metals (as Pb) |
Max 0.001% |
| Ammonium (NH4) |
Max 0.01% |
| Foreign amino acids |
Max 0.3% |
| Other ninhydrin positive substances
(as glycine) |
Max 0.1% | |
|