Description

Bis(p-Tolyl)Phosphine Oxide is a versatile organophosphorus compound widely used as a key intermediate and ligand in advanced chemical synthesis. Its value lies in its ability to facilitate challenging coupling reactions and serve as a precursor for more complex phosphine ligands, which are critical in catalysis. This product is essential for researchers and manufacturers in the pharmaceutical, agrochemical, and specialty chemical industries who require high-purity building blocks for developing new materials and active ingredients.

Application

• As a ligand precursor in the synthesis of transition metal catalysts for cross-coupling reactions (e.g., Suzuki, Heck).
• As a key chemical intermediate in the production of more complex phosphine oxides and phosphines.
• In pharmaceutical research for the development of novel drug candidates and active pharmaceutical ingredients (APIs).
• In agrochemical synthesis for creating new herbicides, insecticides, and plant growth regulators.
• In material science for the development of flame retardants, stabilizers, and specialty polymers.
• For organic light-emitting diode (OLED) research as a component in electron-transport materials.

Basic Information

Product Name	Bis(p-Tolyl)Phosphine Oxide
CAS No.	2409-61-2
Molecular Formula	C14H15OP
Molecular Weight	230.24 g/mol
Synonyms	Bis(4-methylphenyl)phosphine oxide; Di-p-tolylphosphine oxide; (4-Methylphenyl)phosphine oxide, bis-; Phosphine oxide, bis(4-methylphenyl)-; p-Tolylphosphine oxide, bis-; Bis(p-tolyl)phosphine oxide; Di(4-tolyl)phosphine oxide; 4,4'-Dimethyldiphenylphosphine oxide
EINECS	219-309-7

Quality Control

Our Bis(p-Tolyl)Phosphine Oxide is manufactured under strict quality management systems. Each batch undergoes rigorous analytical testing, including HPLC, NMR, and GC, to ensure high purity and consistency. Certificates of Analysis (COA) detailing identity, purity, and impurity profiles are provided with every shipment to support your quality assurance and regulatory needs.

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). This product is hygroscopic (moisture-sensitive); keep the container tightly sealed to minimize exposure to atmospheric moisture.

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	≤ 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.