Description

D-Lysine Methyl Ester Dihydrochloride is a protected derivative of the essential amino acid L-lysine, widely used as a key chiral building block in organic synthesis. This high-purity intermediate is critical for ensuring the stereochemical integrity and yield of complex target molecules. It is primarily utilized by research institutions and manufacturers in the pharmaceutical, biotechnology, and fine chemical industries for the development of peptides, active pharmaceutical ingredients (APIs), and other bioactive compounds.

Application

• Pharmaceutical Intermediate: A crucial chiral synthon in the multi-step synthesis of peptide-based drugs, antiviral agents, and other complex APIs.
• Peptide Synthesis: Serves as a protected lysine residue in solid-phase and solution-phase peptide synthesis (SPPS), enabling the controlled elongation of peptide chains.
• Biochemical Research: Used as a standard or reagent in proteomics research, enzyme studies, and metabolic pathway investigations.
• Fine Chemical Production: Employed in the synthesis of specialized catalysts, ligands, and custom organic compounds requiring a protected amino acid moiety.
• Agrochemical Development: Acts as a building block for synthesizing novel, biologically active compounds in crop protection research.

Basic Information

Product Name	D-Lysine Methyl Ester Dihydrochloride
CAS No.	67396-08-1
Molecular Formula	C7H17Cl2N2O2
Molecular Weight	232.13 g/mol
Synonyms	D-Lysine Methyl Ester Dihydrochloride; (2R)-2,6-Diaminohexanoic Acid Methyl Ester Dihydrochloride; Methyl D-lysinate Dihydrochloride; H-D-Lys-OMe·2HCl; D-Lysine Methyl Ester HCl; Methyl (2R)-2,6-diaminohexanoate dihydrochloride; (R)-Methyl 2,6-diaminohexanoate dihydrochloride
EINECS	Contact for details

Quality Control

Our D-Lysine Methyl Ester Dihydrochloride is manufactured under strict quality management systems. Each batch undergoes comprehensive analytical testing to ensure high chemical purity, correct stereochemistry, and compliance with customer specifications. A detailed Certificate of Analysis (COA) providing results for assay, optical rotation, impurity profile, and identification is provided with every shipment to guarantee traceability and batch-to-batch consistency.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated place at a controlled room temperature (15-25°C). This compound is hygroscopic (moisture-sensitive); keep the container tightly sealed to prevent absorption of atmospheric moisture, which can affect stability and handling properties.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥98.0%
Optical Rotation [α]20/D	+18.0° to +22.0° (c=1 in H2O)
Water Content (KF)	≤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.