Description

Methyldiphenylphosphine Oxide is a versatile organophosphorus compound widely utilized as a key ligand precursor and intermediate in advanced chemical synthesis. Its primary commercial value lies in its role in facilitating cross-coupling reactions and serving as a building block for specialized catalysts and flame retardants. This product is essential for R&D and production within the pharmaceutical, agrochemical, and material science industries, where precise chemical functionality is critical.

Application

• Pharmaceutical Intermediate: Serves as a crucial precursor in the synthesis of active pharmaceutical ingredients (APIs) and complex organic molecules.
• Catalyst Ligand Synthesis: Used to prepare phosphine ligands for homogeneous catalysis, including palladium-catalyzed cross-coupling reactions (e.g., Suzuki, Heck).
• Agrochemical Manufacturing: Acts as an intermediate in the production of certain herbicides, fungicides, and plant growth regulators.
• Flame Retardant Formulations: Employed as a synergistic agent or intermediate in the development of flame-retardant materials for polymers and textiles.
• Material Science Research: Used in the development of novel polymers, liquid crystals, and electronic materials.
• Organic Synthesis Reagent: Functions as a stabilizing ligand or reagent in various organometallic and organic transformations.

Basic Information

Product Name	Methyldiphenylphosphine Oxide
CAS No.	2129-89-7
Molecular Formula	C13H13OP
Molecular Weight	216.22 g/mol
Synonyms	Methyldiphenylphosphine oxide; Methyl(diphenyl)phosphine oxide; Diphenylmethylphosphine oxide; (Methyldiphenylphosphoryl)benzene; Methyldiphenylphosphane oxide; P,P-Diphenyl-P-methylphosphine oxide; NSC 163082; Methyldiphenylphosphine oxide (MDPO)
EINECS	218-341-2

Quality Control

Our Methyldiphenylphosphine Oxide is manufactured under a strict quality management system. Each batch undergoes comprehensive 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 and 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 a controlled room temperature (15-25°C). Due to its hygroscopic nature, the container must be kept tightly sealed to minimize exposure to atmospheric moisture. Keep away from incompatible materials.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Melting Point	115 - 120 °C
Loss on Drying	≤ 0.5%
Heavy Metals (as Pb)	≤ 10 ppm

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