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Specification
|
Items |
Standards |
|
Identification |
Infrared Absorption |
|
Specific Rotation |
-9.8°to -11.2° |
|
Loss on drying |
0.3% Max |
|
Residue on iginition |
0.4% Max |
|
Chloride |
0.04% Max |
|
Sulfate |
0.04% Max |
|
Iron |
0.003% Max |
|
Heavy Metals |
0.0015% Max |
|
Individual impurity |
0.5% Max |
|
Total Impurity |
2.0% Max |
|
Organic volatile impurities |
Meet the requirements |
|
Assay |
98.5% -101.5% |
Details
L-Tyrosine
White crstals or crystalline powder. Freely soluble in formic acid, very slightlysoluble in water,practically insoluble in ethanol and in ether. Dissolve in dilute hydrochloric acid and in dilute nitric acid. Aside from being a proteinogenic amino acid, tyrosine has a special role by virtue of the phenol functionality. It occurs in proteins that are part of signal transduction processes. It functio ns as a receiver of phosphate groups that are transferred by way of protein kinases (so-called receptor tyrosine kinases). Phosphorylation of the hydroxyl group changes the activity of the target protein.
Contact: FINECHEM GROUP LIMITED
Phone: 15002176312
Tel: 0086-15002176312
Add: Building 1, No. 1036 Xishai Road, Fengxian District, Shanghai，China
JCCMS