Description

Phosphine Oxide, Bis(3-Methylphenyl) is a specialized organophosphorus compound with a CAS registry number of 145290-34-2. This chemical serves as a versatile intermediate and ligand, valued for its ability to modify material properties and facilitate specific synthetic pathways. It is primarily sought after by manufacturers and researchers in the pharmaceutical, agrochemical, and advanced materials sectors for applications requiring precise molecular control.

Application

• Pharmaceutical Intermediate: Used in the synthesis of active pharmaceutical ingredients (APIs) and other complex organic molecules.
• Catalyst Ligand: Acts as a ligand in transition metal catalysis for various cross-coupling and polymerization reactions.
• Agrochemical Synthesis: A key building block in the production of advanced pesticides and herbicides.
• Flame Retardant Precursor: Employed in the development of flame-retardant additives for polymers and plastics.
• Extractant in Hydrometallurgy: Used in solvent extraction processes for the separation and purification of rare earth and precious metals.
• Polymer Modifier: Incorporated to enhance the thermal stability or other physical properties of specialty polymers.
• Research & Development: Serves as a valuable reagent in academic and industrial R&D for exploring new chemical entities.

Basic Information

Product Name	Phosphine Oxide, Bis(3-Methylphenyl)
CAS No.	145290-34-2
Molecular Formula	C14H15OP
Molecular Weight	230.24 g/mol
Synonyms	Bis(3-methylphenyl)phosphine oxide; Di-m-tolylphosphine oxide; (3-Methylphenyl)phosphine oxide dimer; m-Tolylphosphine oxide; Phosphinic acid, bis(3-methylphenyl)-; 3,3'-Dimethyltriphenylphosphine oxide; Ligand for metal catalysis; Organophosphorus extractant
EINECS	Contact for details

Quality Control

Our Phosphine Oxide, Bis(3-Methylphenyl) is manufactured under strict quality management systems. Each batch undergoes rigorous analytical testing to ensure high purity and consistency. Certificates of Analysis (COA) documenting identity, purity, and impurity profiles are available upon request to support your quality assurance protocols.

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). Due to its hygroscopic nature, the container must be kept 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.