Description
Product Name: L-Histidine Hydrochloride
CAS Number: 1119-34-2
Chemical Formula: C6H15ClN4O2
Molecular Weight: 210.6631
Synonyms: L-(+)-Arginine Hydrochloride;
L-(+)-Arginine monohydrochloride
Standard: AJI92
* Melting Point: 226ºC
Specification:
|
Appearance: |
White crystalline powder |
|
Assay[dry basis]: |
99.0% to 101.0% |
|
Specific rotation [α]D20: |
+22.1º to +22.9º |
|
State of solution: |
Clear and colorless |
|
Transmittance: |
98.0% min. |
|
Loss on drying |
0.20% max. |
|
PH: |
4.7 to 6.2 |
|
Residue on ignition [sulfated]: |
0.10% max. |
|
Chloride [Cl-]: |
16.6% to 17.0% |
|
Ammonium [NH4+]: |
0.02% max. |
|
Sulfate [SO4]: |
0.020% max. |
|
Iron [Fe]: |
10ppm max. |
|
Heavy metals [Pb]: |
10ppm max. |
|
Arsenic [As2O3]: |
1ppm max. |
|
Other amino acids: |
0.4% max. |