l-Lysine
CAS 56-87-1
EC 200-294-2
Formula C6H14N2O2
MW 146.19 g/mol
Amino Acids & Peptides Personal Care & CosmeticsAgriculture & FeedPharmaceuticals & HealthcareFood & Nutrition Antioxidant & StabilizerHumectant & MoisturizingpH Regulation & Buffering
Description
L-Lysine (CAS 56-87-1, EC 200-294-2) is a proteinogenic amino acid supplied as a free base under common designations including LYS, L-LYS, and H-Lys-OH. It carries no assigned E-code in the EU. The compound is classified under HS code 29224100 for customs and trade purposes.
In personal care formulations, L-Lysine functions as a hair and skin conditioner by reinforcing the protein structure of keratin and supporting moisture retention through its hygroscopic amine groups. In food and pharmaceutical applications, it serves as a pH buffer and antioxidant co-factor, stabilising sensitive active ingredients against oxidative degradation.
L-Lysine is available in powder and crystalline grades conforming to Ph.Eur., FCC, and USP standards, supporting pharmaceutical, food, and feed applications across regulated markets. It is fully registered under REACH. Standard packaging formats include 25 kg bags, with bulk options available on request.
In personal care formulations, L-Lysine functions as a hair and skin conditioner by reinforcing the protein structure of keratin and supporting moisture retention through its hygroscopic amine groups. In food and pharmaceutical applications, it serves as a pH buffer and antioxidant co-factor, stabilising sensitive active ingredients against oxidative degradation.
L-Lysine is available in powder and crystalline grades conforming to Ph.Eur., FCC, and USP standards, supporting pharmaceutical, food, and feed applications across regulated markets. It is fully registered under REACH. Standard packaging formats include 25 kg bags, with bulk options available on request.
Physical Properties
| Melting Point | 5-224 °C (decomp) |
| Boiling Point | 265.81°C (rough estimate) |
| Density | 1.2362 g/cm³ |
| Appearance | White to pale yellow crystalline powder |
| Color | White to light yellow |
| Odor | odorless |
| Form | Powder or Crystals |
| Water Solubility | Soluble in water. Insoluble in ethanol, ethyl ether, acetone, benzene and common neutral solvent. |
| Refractive Index | 26 ° (C=2, 5mol/L HCl) |
| pH | 9.74 |
| Log P | -3.05 |
Trade & Regulatory
| HS Code | 29224100 |
| Storage Class | 11 - Combustible Solids |
| WGK (Germany) | 3 |
Other Names
(2S)-2,6-diaminohexanoic acidLysL-LYSLYSINEH-LYS-OH
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Raw Materials
Derivatives
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