Factory Supply Good Price L-Lysine Acetate
Product Description
Lysine (abbreviated as Lys or K) is an α-amino acid with the chemical formula HO2CCH(NH2)(CH2)4NH2. This amino acid is an essential amino acid, which means that humans cannot synthesize it. Its codons are AAA and AAG. Lysine is a base, as are arginine and histidine. The ε-amino group acts as a site for hydrogen binding and a general base in catalysis. Common posttranslational modifications include methylation of the ε-amino group, giving methyl-, dimethyl-, and trimethyllysine. The latter occurs in calmodulin. Other posttranslational modifications include acetylation. Collagen contains hydroxylysine which is derived from lysine by lysyl hydroxylase. O-Glycosylation of lysine residues in the endoplasmic reticulum or Golgi apparatus is used to mark certain proteins for secretion from the cell.
BASIC ANALYSIS
|
Analysis |
Description |
Test Method |
|
Assay (dry basis) |
99.0～101.0% |
HPLC |
|
Loss on drying |
Not More Than 0.20% |
Dryer |
|
Residue on ignition |
Not More Than 0.10% |
Ph. Eur. |
|
Related substances |
Not More Than 0.1% |
Ph. Eur. |
|
Endotoxin* |
Less Than 6.0 EU/g |
Ph. Eur. |
|
State of solution(Transmittance) |
Not Less Than 98.0% |
Ph. Eur. |
|
PH |
6.5~7.5 |
Ph. Eur. |
|
Specific rotation[α]20D |
+8.5～+10.0° |
Ph. Eur. |
|
Specific rotation[α]25D |
+8.4～+9.9° |
Ph. Eur. |
|
Ammonium (NH4) |
Not More Than 0.020% |
Ph. Eur. |
|
Chloride (Cl) |
Not More Than 0.020% |
Ph. Eur. |
|
Sulfate (SO4) |
Not More Than 0.020% |
Ph. Eur. |
|
Iron (Fe) |
Not More Than 10 ppm |
ICP-MS/AOAC 993.14 |
|
Arsenic (As) |
< 1 ppm |
ICP-MS/AOAC 993.14 |
|
Cadmium (Cd) |
< 2 ppm |
ICP-MS/AOAC 993.14 |
|
Heavy metals (Pb) |
Not More Than 10 ppm |
ICP-MS/AOAC 993.14 |
|
Mercury (Hg) |
< 0.5 ppm |
ICP-MS/AOAC 993.14 |
Microbial Analysis
| Total Plate Count | < 3,000 cfu/g | AOAC 990.12 |
| Total Yeast & Mold | < 300 cfu/g | AOAC 997.02 |
| E. Coli | < 10 cfu/g | AOAC 991.14 |
| Coliforms | < 10 cfu/g | AOAC 991.14 |
| Salmonella | Negative | ELFA-AOAC |
| Staphylococcus | < 10 cfu/g | AOAC 2003.07 |
Function
An acetate salt of L-lysine. L-Lysine is an essential amino acid in human. It is metabolized to acetyl-CoA. It is widely used as an ingredient in infusion.
