Pharmaceutical Grade L Proline

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High Quality Pharmaceutical Grade L Proline
Product Description
Product Name
l-proline powder
Manufacturer
Xi'an Rongsheng Biotechnology Co., Ltd.
Item
Specification
Standard
AJI92/FCCIV
Appearance
White crystal or crystalline powder
Assay (dried substance), %
98.5~ 101.0
Specific rotation[α]D20
-84.5°~ -86.0°
Transmittance, %
≥98.0
Chloride (Cl), %
≤0.020
Sulfate (SO4), %
≤0.020
Ammonium salt (NH4), %
≤0.020
Iron (Fe)
≤10ppm
Heavy metals (Pb)
≤10ppm
Arsenic (As)
≤1ppm
Lead
≤3ppm
Cadmium
≤1ppm
Mercury
≤0.1ppm
Other amino acids
Negative
Loss on drying, %
≤0.30
Residue on ignition(sulfated), %
≤0.10
pH
5.9~ 6.9
Total plate count
≤1000cfu/g
Yeast and molds
≤100cfu/g
Salmonella
Negative
E.Coli
Negative
Identification
Meets the IR requirement
L-proline is an amino acid, one of the twenty DNA-encoded amino acids. Its codons are CCU, CCC, CCA, and CCG. It is not an essential amino acid, which means that the human body can synthesize it. It is unique among the 20 protein-forming amino acids in that the amine nitrogen is bound to not one but two alkyl groups, thus making it a secondary amine. The more common L form has S stereochemistry.

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.
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