Description

(4-Methylbenzyl)Triphenylphosphonium Bromide is a high-purity, versatile organophosphonium salt widely used as a key reagent in organic synthesis. Its primary value lies in its role as a stable ylide precursor for the Wittig reaction, enabling the efficient synthesis of alkenes with high stereoselectivity. This compound is essential for researchers and process chemists in the pharmaceutical, agrochemical, and advanced materials industries who require reliable building blocks for complex molecule construction.

Application

• Wittig Olefination Reagent: A fundamental reagent for the stereoselective synthesis of alkenes, crucial in constructing complex organic frameworks.
• Pharmaceutical Intermediate: Used in the synthesis of active pharmaceutical ingredients (APIs) and drug candidates, particularly those containing specific alkene functionalities.
• Agrochemical Synthesis: Serves as a key intermediate in the production of certain herbicides, fungicides, and plant growth regulators.
• Ligand and Catalyst Precursor: Can be utilized to generate phosphine ligands or as a precursor for catalysts in various transition metal-catalyzed reactions.
• Material Science Research: Employed in the development of novel organic materials, including liquid crystals and polymers with tailored properties.
• Fine Chemical Production: Acts as a specialized building block for synthesizing flavors, fragrances, and other high-value fine chemicals.

Basic Information

Product Name	(4-Methylbenzyl)Triphenylphosphonium Bromide
CAS No.	2378-86-1
Molecular Formula	C26H24BrP
Molecular Weight	447.35 g/mol
Synonyms	p-Methylbenzyltriphenylphosphonium Bromide; 4-Methylbenzyltriphenylphosphonium Bromide; (p-Tolylmethyl)triphenylphosphonium Bromide; (4-Methylphenyl)methyl-triphenylphosphonium Bromide; Phosphonium, (4-methylbenzyl)triphenyl-, bromide; Triphenyl(4-methylbenzyl)phosphonium Bromide; WITTIG REAGENT (p-METHYLBENZYL); (p-Methylbenzyl)triphenylphosphonium Bromide
EINECS	219-164-2

Quality Control

Our (4-Methylbenzyl)Triphenylphosphonium Bromide is manufactured under strict quality management systems. Each batch undergoes rigorous analytical testing to ensure it meets the high standards required for research and industrial synthesis. A comprehensive Certificate of Analysis (COA) detailing purity, identity, and impurity profiles is provided with every shipment to guarantee traceability and batch-to-batch consistency.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated place at room temperature (15-25°C). This product 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%
Melting Point	Contact for details
Loss on Drying	≤ 1.0%
Heavy Metals	≤ 20 ppm

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