Description

1R,2R-Bis[(1R)-1-Phenylethyl]-1,2-Diphenyl-1,2-Ethanediamine CAS NO 208539-58-6 is a high-purity, chiral diamine ligand of significant importance in asymmetric synthesis. Its value lies in its ability to induce high enantioselectivity in catalytic reactions, which is critical for producing single-isomer pharmaceutical intermediates and fine chemicals. This compound is essential for research institutions and manufacturers in the pharmaceutical, agrochemical, and specialty chemical industries who require precise stereochemical control.

Application

• As a chiral ligand in asymmetric hydrogenation and transfer hydrogenation reactions.
• As a key building block for the synthesis of complex, enantiomerically pure pharmaceutical actives.
• In the preparation of asymmetric catalysts for C-C and C-N bond-forming reactions.
• For use in academic and industrial R&D focused on novel catalytic methodologies.
• As a resolution agent for the separation of racemic mixtures of carboxylic acids or alcohols.
• In the synthesis of specialty polymers and materials requiring chiral centers for specific optical or mechanical properties.

Basic Information

Item	Details
Product Name	1R,2R-Bis[(1R)-1-Phenylethyl]-1,2-Diphenyl-1,2-Ethanediamine
CAS No.	208539-58-6
Molecular Formula	C30H32N2
Molecular Weight	420.59 g/mol
Synonyms	(1R,2R)-1,2-Bis[(1R)-1-Phenylethylamino]-1,2-diphenylethane; (R,R)-1,2-Bis[(R)-1-Phenylethylamino]-1,2-diphenylethane; (R,R)-N,N'-Bis[(R)-1-Phenylethyl]-1,2-diphenylethane-1,2-diamine; (R,R)-DPEN Derivative; Chiral Diamine Ligand; Jacobsen-type Ligand Analog; Contact for details on additional trade names.
EINECS	Contact for details

Quality Control

Our 1R,2R-Bis[(1R)-1-Phenylethyl]-1,2-Diphenyl-1,2-Ethanediamine is manufactured under strict quality systems. Each batch undergoes rigorous analytical testing, including chiral HPLC and NMR, to ensure high chemical and enantiomeric purity consistent with research and process development requirements. A comprehensive Certificate of Analysis (COA) detailing identity, purity, and impurity profiles is provided with every shipment.

Storage

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

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 98.0%
Enantiomeric Excess (ee)	≥ 99.0%
Melting Point	Contact for details
Loss on Drying	≤ 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.