Description

4,4'-Bis(Methyltriphenylphosphonium)Biphenyl Dichloride is a high-purity, specialty phosphonium salt primarily utilized as a key intermediate and catalyst in advanced organic synthesis. Its value lies in its role as a versatile reagent for facilitating challenging coupling and polymerization reactions, enabling the production of high-performance materials. This compound is essential for R&D and manufacturing within the pharmaceutical, agrochemical, and advanced polymer industries, where precise molecular construction is critical.

Application

• Polymer Synthesis: Acts as a crucial catalyst or chain transfer agent in the production of specialty polymers, including poly(arylene ether)s and high-temperature resins.
• Pharmaceutical Intermediates: Serves as a key building block in the multi-step synthesis of complex active pharmaceutical ingredients (APIs).
• Material Science Research: Used in the development of novel organic electronic materials, such as organic light-emitting diodes (OLEDs) and conductive polymers.
• Cross-Coupling Reactions: Functions as a precursor to generate reactive species for palladium-catalyzed cross-coupling reactions (e.g., Suzuki, Heck).
• Phase-Transfer Catalysis (PTC): Employed as an efficient phase-transfer catalyst in biphasic reaction systems to enhance reaction rates and yields.
• Agrochemical Synthesis: Utilized in the manufacturing process of certain advanced herbicides and plant growth regulators.

Basic Information

Product Name	4,4'-Bis(Methyltriphenylphosphonium)Biphenyl Dichloride
CAS No.	54050-02-1
Molecular Formula	C44H38Cl2P2
Molecular Weight	699.60 g/mol
Synonyms	Bis(methyltriphenylphosphonium) biphenyl dichloride; 4,4'-Bis(methyltriphenylphosphonium)diphenyl dichloride; 1,1'-(Biphenyl-4,4'-diyl)bis(methyltriphenylphosphonium) dichloride; p-Bis(methyltriphenylphosphonium)benzene dichloride; BMTB Dichloride; Methyltriphenylphosphonium biphenyl salt
EINECS	Contact for details

Quality Control

Every batch of 4,4'-Bis(Methyltriphenylphosphonium)Biphenyl Dichloride is manufactured under strict quality management systems. We employ advanced analytical techniques, including NMR and HPLC, to ensure identity, purity, and consistency meet the stringent requirements of our global clientele. A comprehensive Certificate of Analysis (COA) detailing purity, assay, and impurity profiles is provided with each shipment 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). This material is hygroscopic (moisture-sensitive) and must be kept under an inert atmosphere or in a desiccator after opening to prevent degradation.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Water Content (KF)	≤ 1.0%
Residue on Ignition	≤ 0.1%

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