L-Lysine (L5501) is a high-purity crystalline amino acid that is hydrophilic and contains an N-butyl amino group, which is protonated at physiological pH. As one of the two purely ketogenic amino acids, it is degraded in vivo to acetoacetyl CoA. It serves as a critical precursor for secondary metabolites, including $\beta$-lactam antibiotics, and is widely utilized in biochemistry for ligand binding assays and the synthesis of poly-lysine polymers.
Advantages
- High purity: Assay ≥98% (TLC).
- Versatility: Essential for cell culture supplementation and protein research.
- Enzymatic substrate: Suitable for studies involving L-lysine oxidase and glycation mechanisms.
- Biocompatibility: Ideal for the preparation of culture media and amino acid profiling.
- Consistent Quality: Tested for ligand binding assay suitability.
Technical specifications
| Catalogue number |
L5501 |
| Product name |
L-Lysine |
| Brand |
Sigma-Aldrich |
| CAS number |
56-87-1 |
| Assay |
≥98% (TLC) |
| Linear formula |
H2N(CH2)4CH(NH2)CO2H |
| Molecular weight |
146.19 g/mol |
| Melting point |
215 °C (dec.) (lit.) |
| Quality level |
200 |
| Solubility |
H2O: 100 mg/mL, clear, colorless |
Available packaging options
| Container Type |
Pack Size |
| Poly bottle |
1 g |
| Poly bottle |
5 g |
| Poly bottle |
25 g |
| Poly bottle |
100 g |
