LHistidine hydrochloride can undergo racemizationdue to heating in water, leading to the formation of DLhistidine. It can be used as a supplement in conditionsof riboflavin vitamin deficiency.
| Chemical Name： |
H-His-OH*HCl*H2O; H-His-OH.HCl.H_2O |
|
Structure Formula： |
|
|
Molecular Formula： |
C6H9N3O2.HCl.H2O |
|
Molecular Weight： |
209.63 |
|
Cas No： |
[5934-29-2] |
|
Characteristics： |
White crystals or crystalline powder. |
|
Quality Standards： |
AJI97 |
|
Item |
Specification (AJI97) |
|
Assay, % |
98.5~101.0 |
|
Specific optical rotation |
-8.0°~ +9.5° |
|
Transmittance |
≥98.0 |
|
pH value |
3.5~4.5 |
|
Loss on drying, % |
≤0.2 |
|
Heavy metals, % |
≤0.001 |
|
Residue on ignition, % |
≤0.1 |
|
Chloride,% |
15.6~17.1 |
|
Sulfate,% |
≤0.02 |
|
Arsenic, % |
≤0.0001 |
|
Iron, % |
≤0.001 |
|
Ammonium (as NH+4), % |
≤0.02 |
|
Other amino acids |
Qualified |
|
Pyrogen |
Nonpyrogen |
|
Package and Transport： |
The inner packed with two layer polyethylene plastic bags; the outer packed with the paper board barrel. Net weight 25kg. Handle with care. Protect the product from sunshine or rain. Do not transport with poisonous or harmful goods. This product belongs to the non-dangerous product category and can be transported as a general chemical product. |
|
Storage： |
Store in dry, clear, shady and place. The expiry date is for two years. |
