 |
| Menge: | |
|---|---|
DY1889
71-00-1
200-745-3
C6H9N3O2
histidine
| Index Name | Specifications |
| Appearance | White crystal or powder |
| Assay | Min 99.0 to 101. 0% |
| State of solution | Clear and colorless |
| Specific rotation[a]20 D | +12.0 to +12.8 degree |
| Chloride | Max 0.020% |
| Ammonium | Max 0.020% |
| Sulfate | Max 0.020% |
| Fe | Max 10ppm |
| Heavy metals | Max 10ppm |
| As | Max 1ppm |
| Residue on ignition | Max 0.10% |
| PH | 7.5 to 8.5 |
| Other amino acids | Not detectable |