L-Hydroxyproline(cas: 51-35-4 )
Introduction :
Appearance: White flake crystalls or crystal powder
Molecular Formula: C5H9NO3
Molecular Weight 131.13
CAS NO. 51-35-4
EINECS NO. 200-091-9
Assay 99% min
Identification positive
Melting Point 274-275ºC
Water Solubility 357.8G/L(20ºC)
Function:
Anti-aging products,especially in the anti-wrinkle products;
Less sensitive products;
Sunburnt repair products;
Application:
a.Promotes the recomposition and contracts collagen, recovers the tenacity of skin;b.Protects elastin, eliminates free radicals;c.Improves the water content in skin cell, moisturizes the skin.
L-hydroxyproline specification:
Commodity |
L-Hydroxyproline |
Specification |
25kg/drum |
Manu Date |
2013-10-08 |
Quantity |
500kg |
Batch No |
021310082 |
Expiry Date |
2014-10-08 |
Basis of Test: AJI92 |
Inspect Item |
Quality Standard |
Inspection Result |
Description |
White crystals or crystalline powder |
White crystalline powder |
Specific Rotation |
-74.0° ~ -77.0° |
-75.1° |
Identification |
Conforms |
Conforms |
ph |
5.0 ~ 6.5 |
5.9 |
luminousness |
≥95.0%
Not less than 95.0%
|
99.2% |
Chloride(CL)
|
≤0.020%
Not moe than 0.020%
|
<0.020%
Less than 0.020%
|
Sulfate(SO4)
|
≤0.020%
Not more than 0.020%
|
<0.020%
Less than 0.020%
|
Ammonium(NH4)
|
≤0.02%
Not more than 0.020%
|
<0.02%
Less than 0.02%
|
Heavy Metals(Pb)
|
≤0.001%
Not more than 0.001%
|
<0.001%
Less than 0.001%
|
Iron(Fe)
|
≤0.001%
Not more than 0.001%
|
<0.001%
Less than 0.001%
|
Arsenic(As2O3)
|
≤0.0001%
Not more than 0.0001%
|
<0.0001%
Less than 0.0001%
|
Other Amino Acids
|
Not detectable
|
Not detected
|
Loss On Drying |
≤0.20%
Not more than 0.20%
|
0.13% |
Residue On Ignition |
≤0.10%
Not more than 0.10%
|
0.05% |
Assay |
98.5 ~ 101.0% |
99.3% |
Conclusion: Conforms |