Description

Tri(o-Tolyl)Phosphine is a specialized organophosphorus compound widely used as a versatile ligand in transition metal catalysis. Its steric and electronic properties make it a critical component for facilitating key chemical transformations in research and industrial synthesis. This compound is essential for manufacturers and R&D teams in the pharmaceutical, agrochemical, and advanced materials sectors who require high-purity catalysts and intermediates.

Application

• As a ligand in cross-coupling reactions such as Suzuki, Heck, and Negishi couplings for C-C bond formation.
• Catalyst component in hydroformylation and hydrogenation processes.
• Precursor for the synthesis of specialized phosphonium salts and other functional organophosphorus compounds.
• Used in polymerization catalysts and as a stabilizer in certain polymer formulations.
• Intermediate in the research and development of pharmaceutical active ingredients and fine chemicals.
• Employed in the synthesis of OLED materials and other electronic chemicals.

Basic Information

Product Name	Tri(o-Tolyl)Phosphine
CAS No.	6163-58-2
Molecular Formula	C21H21P
Molecular Weight	304.37 g/mol
Synonyms	Tris(2-methylphenyl)phosphine; Tri-ortho-tolylphosphine; Tri(o-methylphenyl)phosphine; Phosphorous tris(o-tolyl); Tris(o-tolyl)phosphine; TOTP; o-Tolylphosphine; 2-Methylphenylphosphine (tris)
EINECS	228-214-4

Quality Control

Our Tri(o-Tolyl)Phosphine is produced under stringent quality management systems. Each batch undergoes comprehensive analytical testing, including HPLC, NMR, and GC analysis, to ensure high chemical purity and consistency. Certificates of Analysis (COA) detailing purity, identity, and impurity profiles are provided and can be tailored to meet specific customer requirements.

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 between 2°C and 25°C. Keep away from strong oxidizing agents.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 98.0%
Melting Point	118°C - 124°C
Loss on Drying	≤ 0.5%

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