Description

Diphenylethylphosphine Oxide is a versatile organophosphorus compound widely used as a key intermediate and ligand in advanced chemical synthesis. Its significance lies in its role as a precursor to valuable phosphine ligands, which are crucial catalysts in cross-coupling reactions for pharmaceutical and fine chemical manufacturing. This product is essential for R&D chemists and production facilities in the pharmaceutical, agrochemical, and specialty materials sectors seeking to develop new active ingredients and functional molecules.

Application

• Pharmaceutical Intermediate: Serves as a critical building block in the synthesis of novel drug candidates and active pharmaceutical ingredients (APIs).
• Catalyst Ligand Precursor: Used to synthesize specialized phosphine ligands for palladium-catalyzed cross-coupling reactions (e.g., Suzuki, Heck, Stille).
• Agrochemical Synthesis: Employed in the research and production of advanced pesticides and herbicides.
• Material Science Research: Acts as a monomer or additive in the development of flame-retardant materials, polymers, and electronic chemicals.
• Organic Synthesis Reagent: Utilized in academic and industrial laboratories for constructing complex organic molecules and exploring new reaction methodologies.
• Coordination Chemistry: Functions as a ligand for metal complexes used in catalysis and material applications.

Basic Information

Product Name	Diphenylethylphosphine Oxide
CAS No.	1733-57-9
Molecular Formula	C14H15OP
Molecular Weight	230.24 g/mol
Synonyms	Ethyl(diphenyl)phosphine oxide; (Diphenylphosphinoyl)ethane; Ethyldiphenylphosphine oxide; NSC 163082; Phosphine oxide, ethyldiphenyl-; Ethyl-diphenyl-phosphine oxide; Diphenyl(ethyl)phosphine oxide; 1-Ethyl-1,1-diphenylphosphine oxide
EINECS	217-076-5

Quality Control

Our Diphenylethylphosphine Oxide is manufactured under strict quality management systems. Each batch undergoes comprehensive analytical testing, including HPLC for purity, NMR and IR for structural confirmation, and tests for residual solvents and moisture, to ensure it meets the high standards required for research and industrial use. A detailed Certificate of Analysis (COA) is provided with every shipment to guarantee traceability, consistency, and compliance with your specifications.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at room temperature (15-25°C). Keep away from strong oxidizing agents.

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.