Description

1,2-Ethanediamine, 1,2-Bis(3,5-Dimethylphenyl)-, (1S,2S)- is a high-purity, chiral diamine ligand with significant utility in asymmetric synthesis and catalysis. Its value lies in its ability to act as a highly selective chelating agent, enabling the production of enantiomerically pure compounds critical for advanced material and pharmaceutical development. This product is essential for R&D chemists and process engineers in the pharmaceutical, agrochemical, and fine chemical industries who require reliable, high-performance chiral auxiliaries.

Application

• As a chiral ligand in asymmetric hydrogenation and other transition metal-catalyzed reactions.
• Key intermediate in the synthesis of enantiomerically pure pharmaceuticals, including active pharmaceutical ingredients (APIs).
• Building block for advanced chiral catalysts and organocatalysts used in fine chemical production.
• Component in the research and development of novel agrochemicals with specific stereochemical requirements.
• Utilized in material science for creating chiral polymers or coordination complexes with unique optical properties.
• Reference standard and reagent for analytical method development in quality control laboratories.

Basic Information

Product Name	1,2-Ethanediamine, 1,2-Bis(3,5-Dimethylphenyl)-, (1S,2S)-
CAS No.	158391-59-4
Molecular Formula	C18H24N2
Molecular Weight	268.40 g/mol
Synonyms	(1S,2S)-1,2-Bis(3,5-dimethylphenyl)ethane-1,2-diamine; (1S,2S)-(-)-1,2-Bis(3,5-dimethylphenyl)ethylenediamine; (S,S)-DMPEDA; (1S,2S)-DACH-DM; (S,S)-1,2-Bis(3,5-dimethylphenyl)ethylenediamine; Chiral Diamine Ligand; (S,S)-Bis(3,5-dimethylphenyl)ethylenediamine
EINECS	Contact for details

Quality Control

Every batch of our (1S,2S)-1,2-Bis(3,5-dimethylphenyl)ethane-1,2-diamine is produced under strict quality management systems. We employ advanced analytical techniques including HPLC, chiral GC, and NMR to ensure high chemical and enantiomeric purity. A comprehensive Certificate of Analysis (COA) detailing identity, purity, and specific impurities is provided with each shipment to guarantee compliance with your research and production specifications.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated place at a controlled room temperature (typically 15-25°C). Due to its hygroscopic nature, the container must be kept tightly sealed under an inert atmosphere (e.g., nitrogen or argon) after opening to prevent moisture absorption and degradation.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 98.0%
Enantiomeric Excess (Chiral GC/HPLC)	≥ 99.0% ee
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.