Description

Bis([1,1'-Biphenyl]-4-Yl)-Phosphine Oxide CAS NO 187344-95-2 is a high-purity organophosphorus compound characterized by its biphenyl-substituted phosphine oxide structure. This compound serves as a critical intermediate and ligand in advanced material science and pharmaceutical synthesis, offering excellent stability and electronic properties. It is primarily utilized by research institutions and industrial manufacturers specializing in organic light-emitting diodes (OLEDs), catalysis, and the development of novel pharmaceutical active ingredients.

Application

• OLED Materials: Key intermediate in the synthesis of electron-transporting and host materials for high-efficiency organic light-emitting diode devices.
• Catalysis & Ligand Chemistry: Acts as a precursor for phosphine ligands used in cross-coupling reactions (e.g., Suzuki, Heck) and other transition metal-catalyzed processes.
• Pharmaceutical Intermediates: Employed in the research and development of complex drug molecules, particularly where a rigid, aromatic phosphine oxide moiety is required.
• Polymer & Material Science: Used as a building block for high-performance polymers, flame retardants, and specialty materials requiring thermal and oxidative stability.
• Academic & Industrial R&D: Serves as a valuable reagent for exploring new synthetic methodologies and material properties in chemical research.

Basic Information

Product Name	Bis([1,1'-Biphenyl]-4-Yl)-Phosphine Oxide
CAS No.	187344-95-2
Molecular Formula	C30H23OP
Molecular Weight	430.48 g/mol
Synonyms	4,4'-Bis(diphenylphosphinyl)biphenyl; Bis(4-biphenylyl)phosphine oxide; Bis(4-phenylphenyl)phosphine oxide; (1,1'-Biphenyl-4,4'-diyl)bis(diphenylphosphine oxide); P,P'-Dioxo-P,P'-bis([1,1'-biphenyl]-4-yl)diphosphinous acid; BBPO; Contact for additional synonyms.
EINECS	Contact for details

Quality Control

Our Bis([1,1'-Biphenyl]-4-Yl)-Phosphine Oxide is manufactured under strict quality management systems. Each batch undergoes rigorous analytical testing, including HPLC, NMR, and elemental analysis, to ensure high purity and consistent performance. Certificates of Analysis (COA) detailing all specifications are provided with every shipment. We can support development projects requiring custom purity grades or specific impurity profiles.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at room temperature (15-25°C). Keep away from strong oxidizing agents. For long-term storage, consider an inert atmosphere to maintain optimal purity.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 97.0%
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.