| Customization: | Available |
|---|---|
| CAS No.: | 556-50-3 |
| Formula: | C4h8n2o3 |
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High Quality Amino Acids 99% Glycylglycine glycine Powder glycylglycine
| Product Name | Glycylglycine |
| Appearance | White crystal or crystalline powder. |
| Specification | ≥98% |
| CAS No. | 556-50-3 |
| Molecular Formula | C4H8N2O3 |
| Molecular Weight | 132.12 |
| Grade | Food Grade |
| Shelf Life | 2 Years |
Glycylglycine is the dipeptide of glycine, making it the simplest peptide.The compound was first synthesized by Emil Fischer and Ernest Fourneau in 1901 by boiling 2,5-diketopiperazine (glycine anhydride) with . Shaking with alkali and other synthesis methods have been reported.
Because of its low toxicity,it is useful as a buffer for biological systems with effective ranges between pH 7.5-8.9, however, it is only moderately stable for storage once dissolved.It is used in the synthesis of more complex peptides.
glycylglycine has also been reported to be helpful in solubilizing recombinant proteins in E. coli. Using different concentrations of the glycylglycine improvement in protein solubility after cell lysis has been observed.
|
ITEMS |
STANDARD |
RESULTS |
|
Appearance |
White powder |
Complies |
|
Identification |
Positive |
Complies |
|
Odor and taste |
Odorless |
Complies |
|
Melting point |
220-240 °C (dec.) |
Complies |
|
Boiling point |
267.18°C (rough estimate) |
Complies |
|
Density |
1.5851 (rough estimate) |
Complies |
|
Refractive index |
1.4880 (estimate) |
Complies |
|
Solubility |
SOLUBLE |
Complies |
|
Acidity coefficient (pKa) |
3.139(at 25C) |
Complies |
|
Specific gravity |
1.28 |
Complies |
|
PH |
7.5-8.9 |
4.5-6.0 (20 C. 1M in H2O) |
|
Assay |
≥98% |
98.1% |
Glycylglycine used as biochemical reagents, and on the biological research and medicine for blood to save and cytochrome C ShuiZhenJi stabilizer of protein drugs.
As a food additive, Glycylglycine can be used in dairy foods, meaty foods, baked foods, pasta foods, and flavored foods.
| Items | Requirements | Results |
| Physical & Chemical | ||
| Appearance | White powder | Conform |
| Odor | Characteristic | Characteristic |
| Particle Size | 98% pass 80mesh | Complies |
| Loss on Drying | ≤5.0% | 3.65% |
| Ash | ≤5.0% | 1.96% |
| Solvent Residue | Meet USP standard | Complies |
| Pesticide Residue | Meet USP standard | Complies |
| Heavy Metal | ||
| Lead (Pb) | ≤2.0ppm | Conform |
| (As) | ≤1.0ppm | Conform |
| (Cd) | ≤1.0ppm | Conform |
| (Hg) | ≤0.1ppm | Conform |
| Microorganism | ||
| Total Plate Count | ≤1000cfu/g | Conform |
| Yeasts and Molds | ≤100cfu/g | Conform |
| Saimonella | Negative/25g | Conform |
| E.coli | Negative | Conform |
| Assay | 98% | 98.5% |
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