Description

D-Lysine is the D-isomer of the essential amino acid lysine, a crucial building block with distinct stereochemical properties. This enantiomer is valued in research and industrial applications where its specific three-dimensional configuration is required, differentiating it from the more common L-form. It serves as a key chiral intermediate and reference standard for pharmaceutical development, biochemical research, and specialty chemical synthesis, catering to the needs of advanced R&D and manufacturing sectors.

Application

• Pharmaceutical Intermediate: Used in the research and synthesis of chiral drugs, peptides, and active pharmaceutical ingredients (APIs) where the D-configuration is critical.
• Biochemical Research: Serves as a standard and reagent in enzymatic studies, metabolic pathway analysis, and stereochemistry investigations.
• Nutritional Science Studies: Employed in comparative research to study the metabolism and biological effects of different amino acid enantiomers.
• Cosmetic & Personal Care Formulations: Incorporated into advanced peptide-based formulations for skincare products.
• Microbiological Media Component: Used in specialized culture media for selective growth of certain microorganisms in industrial biotechnology.
• Chiral Catalyst & Ligand Synthesis: Acts as a precursor for creating chiral catalysts and ligands used in asymmetric synthesis.

Basic Information

Product Name	D-Lysine
CAS No.	923-27-3
Molecular Formula	C₆H₁₄N₂O₂
Molecular Weight	146.19 g/mol
Synonyms	(2R)-2,6-Diaminohexanoic acid; D-2,6-Diaminocaproic acid; (R)-Lysine; D-Lys; H-D-Lys-OH; (R)-2,6-Diaminohexanoic acid; D-α,ε-Diaminocaproic acid
EINECS	213-091-9

Quality Control

Our D-Lysine is manufactured under strict quality management systems. Each batch undergoes comprehensive analytical testing, including chiral purity verification by HPLC, to ensure it meets exacting standards for research and industrial use. Certificates of Analysis (COA) detailing assay, enantiomeric excess, and impurity profiles are provided with every shipment to guarantee traceability and consistency.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at a controlled room temperature (15-25°C). Due to its hygroscopic nature, the container must be kept tightly sealed after each use to prevent moisture absorption, which can affect stability and handling properties.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to standard
Assay (HPLC)	≥ 98.0%
Enantiomeric Purity (Chiral HPLC)	≥ 99.0% D-isomer
Specific Rotation	Contact for details
Loss on Drying	≤ 1.0%
Residue on Ignition	≤ 0.1%
Heavy Metals	≤ 10 ppm

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.