High purity L-lysine monohydrochloride
In industrial production and application, the following physicochemical properties are the core quality control indices for L-lysine monohydrochloride (compliant with USP 47, EP 10, ChP 2020, and FAO/WHO food/feed standards):
- Assay (content): ≥98.5% (acid-base titration method).
- Specific rotation: +20.3° to +21.5° (10% w/v aqueous solution, 25 °C).
- Loss on drying: ≤0.5% (105 °C, 3 h)— no water of crystallization.
- Residue on ignition: ≤0.1%— low inorganic impurity content.
- Chloride content: 19.0–19.8% (titration with AgNO3)— confirms the hydrochloride salt stoichiometry.
- Heavy metals: ≤10 ppm (Pb²⁺ as reference)— meets food/ pharmaceutical safety standards.
- Arsenic: ≤1 ppm— ultra-low toxic impurity content.
- pH: 5.0–6.0 (10% w/v aqueous solution)— near neutral, no irritation to gastrointestinal tract.
Other supplier products
|
|
L-proline Supply price |
Storage and transportation of L-prolineStorage conditions: Store in a sealed container in a cool and dry place, away from moisture, high temperatur... |
|
|
High quality DL-Methionine |
DL-Methionine, chemically designated asDL-2-amino-4-(methylthio)butanoic acid, is a racemic mixture consisting of equimolar quantities of L-methion... |
|
|
DL-methionine Exporter |
The chemical stability of DL-methionine is affected by factors such as pH, temperature, light, and oxidants, which directly determine its storage c... |
|
|
DL-Alanine Market quotation |
While not a direct preservative, DL-Alanine can indirectly help maintain food quality and extend shelf life through two auxiliary mechanisms: 1. Mo... |
|
|
High quality L-proline |
Metabolism and Safety of L-prolineMetabolic pathway: Mainly metabolized in the liver and kidneys, it is converted into glutamate hemialdehyde throu... |
All supplier products
Same products
