Description

Phosphine Oxide, 1,1'-[1,4-Phenylenebis(Methylene)]Bis[1,1-Diphenyl- is a specialized organophosphorus compound that serves as a high-performance ligand and intermediate in advanced chemical synthesis. Its molecular architecture, featuring a central phenylene spacer and multiple phenyl groups, is engineered to provide exceptional stability and tunable electronic properties for catalytic systems. This compound is primarily sought by researchers and manufacturers in the fine chemical and pharmaceutical sectors for developing novel materials and active pharmaceutical ingredients (APIs).

Application

• As a key ligand in transition metal catalysis for cross-coupling reactions.
• As a precursor or intermediate in the synthesis of advanced organic materials and polymers.
• In pharmaceutical research for the development of new drug candidates and complex molecules.
• For academic and industrial R&D exploring new organophosphorus chemistry and applications.
• As a potential additive or modifier in specialty polymer formulations to impart specific properties.
• In the synthesis of functionalized ligands for use in homogeneous catalysis and material science.

Basic Information

Product Name	Phosphine Oxide, 1,1'-[1,4-Phenylenebis(Methylene)]Bis[1,1-Diphenyl-
CAS No.	38661-56-2
Molecular Formula	C39H32OP2
Molecular Weight	578.62 g/mol
Synonyms	1,4-Bis(diphenylphosphinylmethyl)benzene; Bis[(diphenylphosphino)methyl]benzene dioxide; 1,1'-[1,4-Phenylenebis(methylene)]bis[1,1-diphenylphosphine oxide]; DPPBZ dioxide; 1,4-Bis(diphenylphosphinoylmethyl)benzene; Tetraphenyl-1,4-phenylenedimethylenediphosphine dioxide; p-Xylylenebis(diphenylphosphine oxide)
EINECS	Contact for details

Quality Control

Our Phosphine Oxide, 1,1'-[1,4-Phenylenebis(Methylene)]Bis[1,1-Diphenyl- is produced under strict quality management protocols to ensure batch-to-batch consistency and high purity. Each lot undergoes comprehensive analytical testing, including HPLC, NMR, and elemental analysis. A Certificate of Analysis (COA) detailing all specifications is provided with every shipment to support your quality assurance and regulatory needs.

Storage

Preserve in a tightly closed container, protected from light. Due to its hygroscopic nature, store in a cool, dry place, ideally at controlled room temperature (15-25°C). For long-term storage, consider using desiccants or an inert atmosphere to maintain product integrity.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Melting Point	Contact for details
Loss on Drying	≤ 1.0%
Heavy Metals	≤ 20 ppm

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