| White to off-white powder | Complying |
| Solubility (0.1M in water) | Clear colorless solution |
| Loss on drying (105°C) | <= 2% |
| Heavy metals (as Pb) | <= 0.0015% |
| pH (0.1M in water) | 11-12 |
| Assay (T) | >= 98%w/w |
| DNase activity | Not detected |
| RNase activity | Not detected |
| Protease activity | Not detected |