Description

Diphenyl(o-Tolyl)Phosphine is a versatile organophosphorus ligand and synthetic intermediate. Its value lies in its ability to facilitate key catalytic and coupling reactions in complex organic synthesis. This compound is essential for R&D chemists and process engineers in the pharmaceutical, agrochemical, and advanced materials sectors seeking to develop new active ingredients and specialty chemicals.

Application

• Pharmaceutical Intermediate: A key ligand and building block in the synthesis of active pharmaceutical ingredients (APIs), particularly in cross-coupling reactions like Suzuki-Miyaura and Stille couplings.
• Catalyst Ligand: Used to modify transition metal catalysts (e.g., Pd, Pt, Rh) to enhance selectivity and activity in hydrogenation, hydroformylation, and other catalytic processes.
• Agrochemical Synthesis: Employed in the production of advanced herbicides, fungicides, and insecticides that require precise phosphorus-containing structures.
• Material Science Research: Serves as a precursor for the development of novel phosphine-based polymers, ligands for OLED materials, and flame retardants.
• Organic Synthesis: A valuable reagent for constructing complex molecular architectures in academic and industrial research laboratories.

Basic Information

Product Name	Diphenyl(o-Tolyl)Phosphine
CAS No.	5931-53-3
Molecular Formula	C19H17P
Molecular Weight	276.31 g/mol
Synonyms	o-Tolyldiphenylphosphine; 2-Methylphenyldiphenylphosphine; (2-Methylphenyl)diphenylphosphane; Phosphine, diphenyl-2-tolyl-; Diphenyl(2-methylphenyl)phosphine; P,P-Diphenyl-P-(o-tolyl)phosphine; (o-Tolyl)diphenylphosphine
EINECS	227-673-4

Quality Control

Our Diphenyl(o-Tolyl)Phosphine is manufactured under strict quality management systems. Every batch undergoes rigorous analytical testing, including HPLC and NMR, to ensure high purity and consistency. Certificates of Analysis (COA) detailing purity, identity, and impurity profiles are available upon request to support your quality assurance and regulatory needs.

Storage

Preserve in a tightly closed container, protected from light. Store under an inert atmosphere (e.g., nitrogen or argon) in a cool, dry, and well-ventilated place. Recommended storage temperature is 2-8°C for long-term stability. This product is easily oxidized and moisture-sensitive; ensure containers are sealed immediately after use.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 97.0%
Melting Point	58 - 62 °C

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