Description

m-Xylylenebis-(Triphenylphosphoniumchloride) is a high-value, bifunctional phosphonium salt widely utilized as a key reagent in advanced organic synthesis. Its primary commercial significance lies in its role as a versatile precursor for the preparation of ylides used in Wittig and related olefination reactions to construct complex molecular frameworks. This compound is particularly essential for researchers and manufacturers in the pharmaceutical, agrochemical, and specialty chemical industries developing novel active ingredients and advanced materials.

Application

• Pharmaceutical Intermediate Synthesis: A crucial building block for constructing olefinic bonds in the synthesis of complex drug molecules and active pharmaceutical ingredients (APIs).
• Agrochemical Production: Used in the manufacture of advanced crop protection agents, including herbicides and fungicides with specific stereochemical requirements.
• Material Science & Polymer Chemistry: Serves as a monomer or cross-linking agent in the development of specialty polymers, resins, and functional materials.
• Ligand & Catalyst Preparation: Acts as a precursor for phosphine ligands used in transition metal catalysis for fine chemical synthesis.
• Academic & Industrial R&D: A fundamental reagent for methodological development in organic chemistry, particularly in carbon-carbon bond-forming reactions.
• Liquid Crystal & Electronic Material Synthesis: Employed in the synthesis of organic components for display technologies and electronic devices.

Basic Information

Product Name	m-Xylylenebis-(Triphenylphosphoniumchloride)
CAS No.	66726-75-8
Molecular Formula	C44H38Cl2P2
Molecular Weight	699.61 g/mol
Synonyms	1,3-Bis(triphenylphosphoniomethyl)benzene Dichloride; m-Xylylene Bis(triphenylphosphonium Chloride); α,α'-Bis(triphenylphosphonio)-m-xylene Dichloride; m-Xylylenebis(triphenylphosphonium) Dichloride; m-Xylylene-bis(triphenylphosphonium chloride); Bis(triphenylphosphoniummethyl)benzene Dichloride; m-Bis(triphenylphosphoniomethyl)benzene Dichloride
EINECS	Contact for details

Quality Control

Our m-Xylylenebis-(Triphenylphosphoniumchloride) is manufactured under strict quality management systems. Each batch undergoes comprehensive analytical testing, including HPLC for purity, NMR for structural confirmation, and Karl Fischer titration for water content, to ensure it meets stringent specifications for research and industrial use. Certificates of Analysis (COA) documenting all critical quality attributes are available upon request.

Storage

Preserve in a tightly closed container, protected from light. Due to its hygroscopic nature, store in a cool, dry place, ideally at 15-25°C, under an inert atmosphere such as nitrogen or argon for long-term stability. Keep the container tightly sealed when not in use to minimize exposure to atmospheric moisture.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Identification (NMR)	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.