Description

D(-)-Arginine is the D-enantiomer of the semi-essential amino acid L-arginine, distinguished by its unique stereochemistry. This specific isomer is a critical building block and chiral intermediate in advanced pharmaceutical synthesis and biochemical research. It is essential for industries requiring high-purity, optically active compounds for applications in peptide drug development, diagnostic reagents, and specialized nutritional studies.

Application

• Pharmaceutical Intermediates: Key chiral precursor in the synthesis of active pharmaceutical ingredients (APIs) and peptide-based therapeutics.
• Biochemical Research: Used as a standard or reagent in enzymatic studies, metabolic pathway analysis, and as a component in cell culture media.
• Diagnostic Reagents: Employed in the formulation of test kits and assays for clinical diagnostics and research laboratories.
• Nutritional Science: Investigated for specialized dietary applications and metabolic studies due to its distinct biological activity compared to the L-form.
• Cosmetic & Personal Care: Incorporated into high-end formulations for its potential skin-conditioning and bioactive properties.

Basic Information

Product Name	D(-)-Arginine
CAS No.	157-06-2
Molecular Formula	C6H14N4O2
Molecular Weight	174.20 g/mol
Synonyms	(R)-2-Amino-5-guanidinopentanoic acid; D-Arg; D-α-Amino-δ-guanidinovaleric acid; (R)-Arginine; H-D-Arg-OH; D-Arginine, free base; (2R)-2-Amino-5-(carbamimidamido)pentanoic acid; D-Arg-OH
EINECS	205-866-5

Quality Control

Our D(-)-Arginine 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 pharmaceutical and research applications. A Certificate of Analysis (COA) detailing identity, purity, and specific rotation is provided with every shipment to guarantee traceability and compliance.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at controlled room temperature (15-25°C). The product is hygroscopic (moisture-sensitive); keep the container tightly sealed to prevent absorption of moisture.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms
Assay (HPLC)	≥ 98.0%
Optical Rotation [α]20/D	-25° to -30° (c=1 in 5N HCl)
Chiral Purity (HPLC)	≥ 99.0% (D-isomer)
Loss on Drying	≤ 1.0%
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.