Description

(1S,2S)-N,N'-Di-p-Toluenesulfonyl-1,2-Diphenyl-1,2-Ethylenediamine CAS NO 170709-41-8 is a high-purity, chiral diamine derivative featuring dual tosyl protecting groups. This compound serves as a critical chiral ligand and intermediate in asymmetric synthesis, enabling the production of enantiomerically pure pharmaceuticals and fine chemicals. It is essential for research and development chemists in the pharmaceutical, agrochemical, and advanced materials sectors who require reliable, high-quality building blocks for complex synthetic routes.

Application

• As a chiral ligand in asymmetric catalysis, including hydrogenation and C-C bond-forming reactions.
• As a key pharmaceutical intermediate in the synthesis of enantiomerically pure active pharmaceutical ingredients (APIs).
• In the research and development of novel agrochemicals requiring specific stereochemistry for biological activity.
• As a building block for complex organic molecules in advanced materials science.
• For the preparation of chiral crown ethers and other host molecules used in enantioselective recognition.
• In academic and industrial laboratories for methodology development in stereoselective synthesis.

Basic Information

Product Name	(1S,2S)-N,N'-Di-p-Toluenesulfonyl-1,2-Diphenyl-1,2-Ethylenediamine
CAS No.	170709-41-8
Molecular Formula	C34H32N2O4S2
Molecular Weight	596.75 g/mol
Synonyms	(1S,2S)-1,2-Bis[(4-methylphenyl)sulfonamido]-1,2-diphenylethane; (1S,2S)-(-)-1,2-Bis(p-toluenesulfonamido)-1,2-diphenylethane; (1S,2S)-N,N'-Ditosyl-1,2-diphenylethylenediamine; (S,S)-TsDPEN; (S,S)-(-)-N,N'-Ditosyl-1,2-diphenylethylenediamine; (1S,2S)-DPEN-Ditosylate; (S,S)-DIPEN-Ts2; (1S,2S)-1,2-Diphenyl-N,N'-bis(4-tolylsulfonyl)ethane-1,2-diamine
EINECS	Contact for details

Quality Control

Our (1S,2S)-N,N'-Di-p-Toluenesulfonyl-1,2-Diphenyl-1,2-Ethylenediamine is manufactured under a strict quality management system. Each batch undergoes rigorous analytical testing, including chiral purity verification by HPLC, to ensure it meets the high standards required for synthetic applications. Certificates of Analysis (COA) detailing identity, purity, and chiral excess are available upon request to support your quality assurance and regulatory needs.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry place at a controlled room temperature (15-25°C). Due to its hygroscopic (moisture-sensitive) nature, the container must be kept tightly sealed in a dry environment to prevent degradation. For long-term storage, consider using desiccants.

Specification

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