Description

D(-)-Asparagine Monohydrate is the L-configuration enantiomer of the non-essential amino acid asparagine, supplied as a monohydrate crystal. This high-purity chiral building block is critical for applications requiring specific stereochemistry, such as pharmaceutical synthesis and advanced biochemical research. It serves as a vital raw material for researchers and manufacturers in the pharmaceutical, biotechnology, and nutraceutical industries.

Application

• Pharmaceutical Intermediate: Used in the synthesis of chiral drugs, peptides, and active pharmaceutical ingredients (APIs) where the specific D(-) configuration is required.
• Biochemical Research: Serves as a defined component in cell culture media, microbiological assays, and enzyme studies.
• Nutritional Science: Employed in metabolic pathway research and the study of amino acid metabolism and transport.
• Reference Standard: Acts as a high-purity analytical standard for chromatography (HPLC, GC) and spectroscopy in quality control laboratories.
• Cosmetic Ingredients: Utilized in the formulation of high-end skincare products for its potential moisturizing and skin-conditioning properties.
• Food Science: Applied in research related to flavor development and the Maillard reaction in food processing.

Basic Information

Product Name	D(-)-Asparagine Monohydrate
CAS No.	5794-24-1
Molecular Formula	C4H8N2O3 • H2O
Molecular Weight	150.13 g/mol
Synonyms	D-Asparagine Monohydrate; (R)-2-Aminosuccinamic Acid Monohydrate; (R)-2,4-Diamino-4-oxobutanoic Acid Monohydrate; D-Asn-OH • H2O; H-D-Asn-OH • H2O; (2R)-2-Amino-3-carbamoylpropanoic Acid Monohydrate; D(-)-α-Aminosuccinamic Acid Monohydrate
EINECS	227-320-2

Quality Control

Our D(-)-Asparagine Monohydrate is manufactured under a strict quality management system. Each batch is tested to ensure it meets high-purity standards suitable for research and pharmaceutical applications. We provide comprehensive Certificates of Analysis (COA) with each shipment, detailing key parameters such as enantiomeric purity, assay, and impurity profiles. Our quality commitment aligns with cGMP principles where applicable.

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 caking and hydrolysis. Keep away from strong oxidizing agents.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.5%
Enantiomeric Purity	≥ 99.0% (D-Isomer)
Specific Rotation [α]20/D	-5.0° to -6.5° (c=2 in H2O)
Loss on Drying	10.0% - 12.5%
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.