Top quality L-Hydroxyproline with best price 51-35-4
≥1 Kilogram
$33.33
- Item No. topMOQ 1 Kilogram
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If over 500pcs, mass production will start until pre-production sample has been approved.
Est. 7 days production
Product Description
Product Name | L-Hydroxyproline |
Synonyms | 4-Hydroxyproline;4-L-Hydroxyproline;delta-Hydroxyproline;Hypro;L-Proline, 4-hydroxy-, trans-;L-Proline,4-hydroxy-,trans;Ls-Hydroxyproline;Proline, 4-hydroxy- |
Category | Nitrogen cyclic compounds;PHARMACEUTICALS;Amino Acids;Pyrrole&Pyrrolidine&Pyrroline;Hydroxyproline [Hyp];Unusual Amino Acids;Biochemistry;Biological-modified Amino Acids;L-Amino Acids;Amino Acids;Amino Acids & Derivatives;Chiral Reagents;Heterocycles |
CAS NO. | 51-35-4 |
Standard | purity >99% |
Appearance | White crystalline powder |
Shelf life | 2 years |
Usage | A natural constituent of animal structural proteins such as collagen and elastin. Several microorganisms producing proline trans-4- and cis-3-hydroxylase were discovered and these enzymes were applied to the industrial production of trans-4- and cis-3-hydroxy-L-proline. |
Storage | Stored in a well-closed container at room temperature, keep away from moisture, heat and light. |
Statement | Products protected by valid patents are for laboratory analytical/research purposes only and are not offered for sale in countries where the sale of such products constitutes a patent infringement, its liability is at buyer's risk! |
Certification of Analysis
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% |
Function&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.
Application:
~Food grade: nutritional supplement, flavor agent, L-Proline is heating with sugar can create a special flavoring substances
~Medicine grade: the important raw materials of amino acid infusion, L-Proline is also the main intermediates to compound anti-hypertensive drugs, such as captopril, enalaprilat
Qingdao Sigma chemical Co., Ltd is is a global chemical industry manufacturers and suppliers of pharmaceuticals and intermediates, food and feed additives, herbal extracts, agrochemicals and fine chemicals etc.
The aim of Qingdao Sigma chemical Co., Ltd is a quality policy that "Elements in the system all have been satisfied, Personnel has been trained; Every batch of material is checked, Each procedure guarantees the quality; Every bag of our products is top grade, Service is thoughtful all the time, quality and reputation to increase market share and promote enterprise development. The quality, colors and forms of our products have reached a high level in related chemical industry, which relies on characteristic and advanced processing technology and it has gained a high and reliable reputation from customers at both quality and services.


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free samples is available,but freight charges will be at your account and the charges will be return to you or deduct from your order in the future.
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A:First of all, our quality control will reduce the quality problem to near zero. If there is a real quality problem caused by us, we will send you free goods for replacement or refund your loss.
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