China GMP Quality Amino Acids Factory Supply 99% Purity L- Proline Raw Proline Powder CAS: 147-85-3
Product Description
| Product Name: | L-Proline |
| CAS No: | 147-85-3 |
| Molecular Formular: | C5H9NO2 |
| Molecular Weight: | 115.13 |
| EINECS No.: | 205-702-2 |
| Melting point: | 228 °C (dec.) (lit.) |
| Place of Origin: | China |
| Type: | Food Additive |
| Appearance: | Crystalline Powder |
| Color | White |
| Purity: | 99.9% |
L-Proline is one of important amino acids which form protein in human boby. It is the essential material of amino acid transfusion. And it is also the main intermediate for compounding Captopril, Enalapril and other antihypertensive drugs. It has been widely used in food, medicine and other industries. It is made by fermentation of corn. So it is more safer.
There are two kinds of L - proline. One is direct fermentation, using glucose and yellow short bacillus mutant or glutamic acid bacillus wild strains, L - proline obtained with microbial fermentation; 2 it is chemical synthesis to glutamic acid as raw materials, and anhydrous ethanol under the sulfuric acid catalytic esterification, and add triethanolamine to amine sulfate free, glutamic acid - delta - ethyl ester.
1. Used as nutritional supplement.
2. Used as the materials of compound amino acid infusion. Used in malnutrition, protein deficiency disease, stomach disease, scald and protein supplement after surgery.
| Items | Specifications | Result |
| Appearance | Crystalline powder | Crystalline powder |
| Color | Whitish | Whitish |
| Assay,% | 98.5~101.0 | 99.5 |
| Specification Rotation | -84.5°~-86.0° | -85.2° |
| Transmittance,% | Clear and colorless≥98.0 | 98.8 |
| Loss on drying,% | ≤0.3 | 0.06 |
| PH | 5.9-6.9 | 6.3 |
| Chloride ,% | ≤0.02 | <0.02 |
| Sulfate,% | ≤0.02 | <0.02 |
| Iron,% | ≤0.001 | <0.001 |
| Heavy metals,% | ≤0.001 | <0.001 |
| Arseni/c,% | ≤0.0001 | <0.0001 |
| Total plate count,cfu/g | ≤1000 | <1000 |
| Salmonella | Negative | Negative |
| Yeast and mould,cfu/g | ≤100 | <100 |
| Coliforms,MPN/g | ≤50 | Negative |
| Ignited residue,% | ≤0.10 | 0.04 |
| Other amino acid | ≤0.5 | <0.5 |
| Conclusion | The goods conforms to USP36 Standard. | |
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