Description

4 4'-(Phenylphosphinidene)Bis(Benzene- is a specialized organophosphorus compound with a unique phosphinidene-bridged biphenyl structure. This compound is valued for its role as a key intermediate and ligand in advanced chemical synthesis and materials science. It is primarily required by R&D laboratories and industrial manufacturers in the pharmaceutical, agrochemical, and specialty polymer sectors for developing novel catalysts and functional materials.

Application

• As a precursor or ligand in transition metal catalysis for cross-coupling and other organic transformations.
• In the research and development of novel pharmaceutical intermediates and active ingredients.
• As a building block for advanced materials, such as flame retardants or specialty polymers.
• For the synthesis of agrochemicals, including herbicides and plant growth regulators.
• In academic and industrial R&D exploring new organophosphorus chemistry.
• As a potential component in the development of electronic materials and OLEDs.

Basic Information

Product Name	4 4'-(Phenylphosphinidene)Bis(Benzene-
CAS No.	308103-66-4
Molecular Formula	C24H19P
Molecular Weight	338.38 g/mol
Synonyms	4,4'-(Phenylphosphinidene)bis(benzene); 4,4'-(Phenylphosphanylidene)dibenzene; 4,4'-Diphenylphenylphosphine; Bis(4-biphenylyl)phenylphosphine; [1,1'-Biphenyl]-4,4'-diyl(phenyl)phosphine; Phenylbis(4-phenylphenyl)phosphine; (4-Biphenylyl)(phenyl)phosphine dimer; Contact for additional synonyms.
EINECS	Contact for details

Quality Control

Our 4 4'-(Phenylphosphinidene)Bis(Benzene- is produced under strict quality management protocols. Each batch undergoes rigorous analytical testing, including HPLC, NMR, and GC-MS, to ensure identity, purity, and consistency. Certificates of Analysis (COA) detailing all specifications are available upon request to support your quality assurance and regulatory needs.

Storage

Preserve in a tightly closed container, protected from light. Store under an inert atmosphere (e.g., nitrogen or argon) in a cool, dry place at room temperature (15-25°C). This compound is easily oxidized and light-sensitive; prolonged exposure to air or light should be avoided to maintain stability and purity.

Specification

Item	Specification
Appearance	White to off-white powder or crystalline solid
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 95.0%
Melting Point	Contact for details

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