Description

7-Diphenylphosphanylheptyl(Diphenyl)Phosphane is a specialized organophosphorus ligand with a long, flexible heptyl linker connecting two diphenylphosphine groups. This molecular structure is critical for its role in homogeneous catalysis, where it acts as a bidentate ligand to stabilize transition metal complexes. It is primarily needed by R&D chemists and process engineers in the pharmaceutical, agrochemical, and fine chemical industries for developing and scaling up catalytic reactions such as cross-coupling and hydrogenation.

Application

• As a bidentate phosphine ligand in homogeneous transition metal catalysis.
• For palladium-catalyzed cross-coupling reactions (e.g., Suzuki, Heck, Negishi) in pharmaceutical intermediate synthesis.
• In asymmetric hydrogenation and other chiral synthesis processes for producing enantiomerically pure compounds.
• As a key component in catalyst systems for the synthesis of complex organic molecules and polymers.
• For academic and industrial research into new catalytic methodologies and ligand design.
• In the manufacture of fine chemicals and specialty materials requiring precise catalytic control.

Basic Information

Product Name	7-Diphenylphosphanylheptyl(Diphenyl)Phosphane
CAS No.	64730-63-8
Molecular Formula	C31H35P2
Molecular Weight	460.56 g/mol
Synonyms	1,7-Bis(diphenylphosphino)heptane; DPPH; Heptane-1,7-diylbis(diphenylphosphane); 1,7-Bis(diphenylphosphanyl)heptane; Bis(diphenylphosphino)heptane; (7-Diphenylphosphanylheptyl)diphenylphosphane; NSC 169155; 64730-63-8
EINECS	Contact for details

Quality Control

Our production of 7-Diphenylphosphanylheptyl(Diphenyl)Phosphane adheres to stringent internal quality protocols to ensure batch-to-batch consistency and high purity. Each lot is characterized using advanced analytical techniques, including NMR and HPLC, to confirm identity and assay. A comprehensive Certificate of Analysis (COA) detailing purity, physical properties, and impurity profiles is provided with every shipment and is available upon request.

Storage

Preserve in a tightly closed container, protected from light. This product is easily oxidized and must be stored under an inert atmosphere (argon or nitrogen) in a cool, dry place. Recommended storage temperature is 2-8°C for long-term stability. Keep away from heat and incompatible materials.

Specification

Item	Specification
Appearance	White to off-white solid
Identification (NMR)	Conforms to structure
Purity (HPLC)	≥ 97.0%
Melting Point	Contact for details

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