Description

1,2-Bis(Di-p-Tolylphosphino)Ethane is a high-purity bidentate phosphine ligand widely used in homogeneous catalysis. Its value lies in its ability to form stable complexes with transition metals, significantly enhancing catalytic activity and selectivity in critical chemical transformations. This product is essential for researchers and manufacturers in the pharmaceutical, agrochemical, and fine chemical industries who require precise control over cross-coupling and hydrogenation reactions.

Application

• As a key ligand in palladium-catalyzed cross-coupling reactions (e.g., Suzuki, Heck, Negishi) for C-C bond formation in complex molecule synthesis.
• In asymmetric hydrogenation catalysts for the production of chiral intermediates used in active pharmaceutical ingredients (APIs).
• As a stabilizing agent in homogeneous catalysis systems to prevent metal aggregation and deactivation.
• For the synthesis of specialized organometallic complexes used in material science and chemical research.
• In hydroformylation and hydrocyanation processes within industrial fine chemical production.
• As a precursor for advanced catalyst development in both academic and industrial R&D laboratories.

Basic Information

Product Name	1,2-Bis(Di-p-Tolylphosphino)Ethane
CAS No.	70320-30-8
Molecular Formula	C30H32P2
Molecular Weight	454.52 g/mol
Synonyms	DTBPE; 1,2-Bis(di-p-tolylphosphino)ethane; Bis(di-p-tolylphosphino)ethane; Ethane-1,2-diylbis[bis(4-methylphenyl)phosphane]; 1,2-Ethanediylbis[bis(4-methylphenyl)phosphine]; DPEphos (Note: DPEphos is a common trade name for related ligands, but often used in searches for this class); Bidentate Tolylphosphine Ligand; 4,4'-Dimethyl-substituted Diphosphine Ligand
EINECS	Contact for details

Quality Control

Our 1,2-Bis(Di-p-Tolylphosphino)Ethane is manufactured under strict quality management systems. Each batch undergoes rigorous analytical testing, including HPLC for purity and NMR for structural confirmation, to ensure compliance with stringent specifications for catalytic applications. Certificates of Analysis (COA) detailing all quality parameters are provided with every shipment.

Storage

Preserve in a tightly closed container, protected from light. Store under an inert atmosphere (e.g., nitrogen or argon) at a controlled room temperature (15-25°C) in a cool, dry, and well-ventilated area. Due to its sensitivity to oxidation and moisture, the container should only be opened in an inert glovebox or under a positive pressure of inert gas.

Specification

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