HISTIDINE HCl
HISTIDINE HCl
| Article No | 525403 |
| Grade | For biochemistry |
| Purity | 99% |
| CAS No. | 5934-29-2 |
| Molecular Formula | C6H10ClN3O2.H2O |
| Molecular Weight | 209.63 |
| H.S. Code | 2933.2990 |
| Shelf Life | 60 Months |
Physical properties
| Physical State at 20 °C | Solid |
| Colour | White crystalline |
| pH Value | 3 – 4 at 105 g/l at 25 °C |
| Melting Point/Freezing Point (°C) | 254 °C |
| Solubility in Water [% weight] | 105 g/l at 20 °C – completely soluble |
Specifications
| Appearance | White crystalline powder |
| Assay (argentometric; on dried basis) | Min 99% |
| Specific Optical Rotation ([α]20/D) | +8.5 to +9.5 deg |
| Heavy Metal (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% |
| Packings | 25 gm |
