Description

Diethyl Aspartate is a high-purity ester derivative of aspartic acid, serving as a versatile and valuable building block in advanced organic synthesis. Its primary commercial value lies in its role as a key chiral intermediate for the production of pharmaceuticals, fine chemicals, and specialty materials. This product is essential for research and manufacturing sectors requiring high-quality, reliable precursors, particularly in the synthesis of active pharmaceutical ingredients (APIs), peptides, and flavor/fragrance compounds.

Application

• Pharmaceutical Intermediate: A crucial chiral synthon in the asymmetric synthesis of various drugs and active pharmaceutical ingredients (APIs).
• Peptide Synthesis: Used as a protected aspartic acid derivative in solid-phase and solution-phase peptide chemistry.
• Fine Chemical Production: Serves as a building block for synthesizing complex organic molecules, agrochemicals, and specialty surfactants.
• Flavor and Fragrance Industry: Employed in the synthesis of certain aroma compounds and flavor enhancers.
• Biochemical Research: Utilized as a substrate or precursor in enzymatic studies and metabolic pathway research.
• Polymer Modification: Acts as a monomer or cross-linking agent in the production of specialized polyamides and other functional polymers.

Basic Information

Product Name	Diethyl Aspartate
CAS No.	13552-87-9
Molecular Formula	C8H15NO4
Molecular Weight	189.21 g/mol
Synonyms	Diethyl L-aspartate; L-Aspartic acid diethyl ester; (S)-Diethyl 2-aminobutanedioate; Diethyl aminobutanedioate; Aspartic acid diethyl ester; H-Asp(OEt)-OEt; Diethyl (S)-aminosuccinate; Ethyl aspartate
EINECS	236-923-7

Quality Control

Our Diethyl Aspartate is manufactured under a strict quality management system. Each batch undergoes comprehensive analytical testing, including chiral purity assay and impurity profile analysis, to ensure it meets the high standards required for pharmaceutical and fine chemical applications. A detailed Certificate of Analysis (COA) is provided with every shipment, confirming compliance with agreed specifications.

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). Keep away from strong oxidizing agents and bases. For long-term storage, consider an inert atmosphere to maintain optimal purity.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms
Assay (HPLC)	≥ 98.0%
Chiral Purity (HPLC)	≥ 99.0% (L-isomer)
Specific Rotation [α]	-20° to -25° (c=1 in H2O)
Water Content (KF)	≤ 0.5%
Residue on Ignition	≤ 0.1%

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