Description

L(+)-Diethyl L-Tartrate is a high-purity chiral ester derived from natural tartaric acid, serving as a critical building block and resolving agent in asymmetric synthesis. Its primary value lies in its ability to impart optical activity and control stereochemistry in complex chemical processes, ensuring high enantiomeric purity in final products. This compound is essential for manufacturers in the pharmaceutical, agrochemical, and fine chemical industries who require reliable, high-quality chiral intermediates for producing active ingredients and specialty chemicals.

Application

• Chiral Resolution Agent: Used for the separation of racemic mixtures of amines, acids, and other compounds via diastereomeric salt formation.
• Asymmetric Synthesis Catalyst Ligand: A key precursor for synthesizing chiral ligands used in metal-catalyzed reactions like hydrogenation and epoxidation.
• Pharmaceutical Intermediate: Employed in the synthesis of enantiomerically pure active pharmaceutical ingredients (APIs) for various therapeutic classes.
• Flavor and Fragrance Ingredient: Acts as a chiral starting material for producing specific stereoisomers that define the sensory profile of advanced flavors and aromas.
• Agrochemical Synthesis: Utilized in the production of chiral pesticides and herbicides where biological activity is stereospecific.
• Polymer Modification: Serves as a monomer or cross-linking agent to introduce chirality or specific functional groups into polymer chains.

Basic Information

Product Name	L(+)-Diethyl L-Tartrate
CAS No.	87-91-2
Molecular Formula	C8H14O6
Molecular Weight	206.19 g/mol
Synonyms	Diethyl L-tartrate; (2R,3R)-Diethyl 2,3-dihydroxysuccinate; L-Diethyl tartrate; Diethyl (2R,3R)-(-)-tartrate; Ethyl L-tartrate; Diethyl (R,R)-tartrate; L-(+)-Diethyl tartrate; Tartaric acid diethyl ester
EINECS	201-783-3

Quality Control

Our L(+)-Diethyl L-Tartrate is manufactured under strict quality management systems. Each batch is tested to ensure it meets high-purity standards suitable for demanding applications in synthesis and resolution. We provide comprehensive Certificates of Analysis (COA) detailing purity, optical rotation, and impurity profiles to support your quality assurance and regulatory compliance needs.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at room temperature (15-25°C). Keep away from strong oxidizing agents.

Specification

Item	Specification
Appearance	Colorless to pale yellow clear liquid
Identification (IR)	Conforms
Assay (HPLC)	≥ 98.0%
Optical Rotation [α]20/D	+7.0° to +9.0° (c=1 in water)
Specific Gravity (20/20°C)	1.200 - 1.210
Refractive Index (n20/D)	1.445 - 1.455
Water Content (KF)	≤ 0.5%

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