Product name:L-Hydroxyproline
Chemicals Name: L-4-Hydroxy-pyrrolidine-2-carboxylic acid
Assay:98.5-101%
CAS NO.:51-35-4
Molecular formula:C5H9NO3
Molecular mass : 131.13
Structural formula:Physicochemical property:White crystals or crystalline powder. Soluble in water, slightly soluble in alcohol, insoluble in ethe
| Product Name | L- Hydroxyproline |
| Package | 25 KG/ DRUM |
| Specific rotation | -74.0°~ -77.0° |
| Identification | Conforms |
| Appearance | White crystals or crystalline powder |
| Ph | 5.0 ~ 6.5 |
| luminousness | Not less than 95.0% |
| Chloride(CL) | Not more than 0.020% |
| Sulfate(SO4) | Not more than 0.020% |
| Ammonium(NH4) | Not more than 0.020% |
| Heavy metals(Pb) | Not more than 0.001% |
| Iron(Fe) | Not more than 0.001% |
| Arsenic(As2O3) | Not more than 0.0001% |
| Other amino acids | Not detectable |
| Loss on drying | Not more than 0.20% |
| Residue on ignition | Not more than 0.10% |
| Assay | 98.5 ~ 101.0% |
APPLICATION&FUNCTION
L-proline benzyl ester hydrochloride and its derivatives are often used as asymmetric catalysts in organic reactions. The CBS reduction and proline catalysed aldol condensation are prominent examples.
L-proline is an osmoprotectant and therefore is used in many pharmaceutical, biotechnological applications.
In brewing, proteins rich in proline combine with polyphenols to produce haze.
L-proline is one of the important amino acids for synthesizing human protein. It is widely used in the food and medical industry, and is an important intermediate for synthesizing ACE inhibitors such as Captopril and Enalapril. It is also one of the important raw materials of amino acid transfusion.
L-proline has been used universally as food additive, catalyst and raw materials of fine chemical industry.
