Description

D-(-)-Arginine Hydrochloride is the hydrochloride salt of the D-enantiomer of the essential amino acid arginine. This specific stereoisomer is a critical chiral building block and analytical standard in advanced biochemical research and pharmaceutical development. It is primarily utilized by research institutions, diagnostic manufacturers, and companies developing peptide-based therapeutics and nutritional supplements where stereochemical purity is paramount. The compound is supplied with a high level of purity to meet the stringent requirements of these applications.

Application

• Pharmaceutical Research & Development: As a chiral precursor or intermediate in the synthesis of novel peptide drugs and bioactive compounds.
• Analytical Standard: Used as a high-purity reference standard in chromatographic (HPLC, GC) and spectroscopic methods for quality control and method validation.
• Biochemical Studies: Employed in enzymatic research, metabolic pathway analysis, and studies investigating the specific biological functions of D-amino acids.
• Diagnostic Reagent Manufacturing: A key component in formulating precise diagnostic kits and assays for clinical and research laboratories.
• Nutritional Science Research: Used in studies exploring the metabolic effects and utilization of different amino acid isomers.

Basic Information

Product Name	D-(-)-Arginine Hydrochloride
CAS No.	627-75-8
Molecular Formula	C₆H₁₄N₄O₂·HCl
Molecular Weight	210.66 g/mol
Synonyms	D-Arginine HCl; (R)-2-Amino-5-guanidinopentanoic acid hydrochloride; D-Arg HCl; H-D-Arg-OH·HCl; (R)-Arginine hydrochloride; D-α-Amino-δ-guanidinovaleric acid hydrochloride; D-Arg·HCl
EINECS	211-003-1

Quality Control

Our D-(-)-Arginine Hydrochloride is manufactured under strict quality management systems. Each batch undergoes comprehensive analytical testing to ensure identity, purity, and consistency. We provide Certificates of Analysis (COA) detailing specifications such as assay (by titration or HPLC), optical rotation, residue on ignition, and heavy metals. The product is suitable for research and development applications requiring high-purity chiral materials.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry place at controlled room temperature (15-25°C). This product is hygroscopic (moisture-sensitive); ensure the container is sealed tightly after each use 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 (Titration)	98.5% - 101.0%
Specific Rotation [α]²⁰D	-22.0° to -24.0° (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.