Description

D-Lysine Hydrochloride is the hydrochloride salt of the D-isomer of the essential amino acid lysine, offering distinct biochemical properties compared to its L-form counterpart. This compound is critical for applications requiring the specific stereochemistry of the D-enantiomer, such as in peptide synthesis and biochemical research where it serves as a building block or a chiral auxiliary. It is primarily utilized by the pharmaceutical, biotechnology, and fine chemical synthesis industries for developing specialized peptides, diagnostic reagents, and as a standard in analytical chemistry.

Application

• Pharmaceutical Intermediate: Used in the synthesis of specialized peptides, antibiotics, and other active pharmaceutical ingredients (APIs) where the D-configuration is required.
• Biochemical Research: Serves as a chiral building block or a standard in enzymatic studies, metabolic pathway analysis, and microbiological media formulation.
• Diagnostic Reagents: Employed in the production of kits and reagents for clinical diagnostics and biomedical testing.
• Fine Chemical Synthesis: Acts as a precursor or a resolving agent in asymmetric synthesis and the production of chiral compounds.
• Nutritional Science Studies: Used in research to study the metabolism and effects of D-amino acids in biological systems.
• Cosmetic Peptides: A potential raw material for synthesizing certain peptide sequences used in advanced cosmetic formulations.

Basic Information

Product Name	D-Lysine Hydrochloride
CAS No.	7274-88-6
Molecular Formula	C6H14N2O2·HCl
Molecular Weight	182.65 g/mol
Synonyms	(2R)-2,6-Diaminohexanoic acid hydrochloride; D-2,6-Diaminocaproic acid hydrochloride; (R)-2,6-Diaminohexanoic acid monohydrochloride; D-Lysine HCl; D-Lysine monohydrochloride; H-D-Lys-OH·HCl; (R)-Lysine hydrochloride
EINECS	230-714-6

Quality Control

Our D-Lysine Hydrochloride is produced and tested under a strict quality management system. We offer material suitable for research and industrial synthesis, with typical purity levels meeting or exceeding 98% (HPLC). Each batch is accompanied by a comprehensive Certificate of Analysis (COA) detailing purity, chiral purity, and key impurity profiles. Specifications can be tailored to meet the requirements of cGMP, ISO, and other relevant quality standards upon request.

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). This product is hygroscopic (moisture-sensitive) and must be kept under dry conditions to prevent clumping and degradation. Keep away from incompatible materials.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms
Assay (HPLC)	≥ 98.0%
Chiral Purity (HPLC)	≥ 99.0% D-isomer
Optical Rotation	+20.0° to +22.0° (c=1 in H2O)
Loss on Drying	≤ 0.5%
Residue on Ignition	≤ 0.1%
Heavy Metals (as Pb)	≤ 10 ppm

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