Description

Triphenyl-(4-Pyridinylmethyl)-Phosphoniumbromide CAS NO 73870-23-2 is a versatile organophosphonium salt widely utilized as a key reagent in advanced organic synthesis. Its primary value lies in its role as a highly effective ylide precursor for Wittig and related olefination reactions, enabling the precise construction of carbon-carbon double bonds. This compound is essential for researchers and process chemists in the pharmaceutical, agrochemical, and advanced materials sectors who require high-purity intermediates for complex molecule development.

Application

• As a crucial precursor for Wittig reactions in the synthesis of alkenes and conjugated systems.
• Intermediate in the production of pharmaceutical active ingredients (APIs) and fine chemicals.
• Reagent for the synthesis of liquid crystal materials and other advanced organic electronic compounds.
• Used in agrochemical research for creating novel active compounds.
• Building block in polymer chemistry for functional monomer synthesis.
• Catalyst or ligand component in organometallic catalysis and coupling reactions.
• Starting material for dye and pigment manufacturing.

Basic Information

Product Name	Triphenyl-(4-Pyridinylmethyl)-Phosphoniumbromide
CAS No.	73870-23-2
Molecular Formula	C24H21BrNP
Molecular Weight	434.31 g/mol
Synonyms	Triphenyl(4-pyridylmethyl)phosphonium bromide; (4-Pyridylmethyl)triphenylphosphonium bromide; 4-(Triphenylphosphoniomethyl)pyridine bromide; P-(4-Pyridinylmethyl)triphenylphosphonium bromide; Phosphonium, triphenyl(4-pyridinylmethyl)-, bromide (1:1); 4-Pyridinemethyltriphenylphosphonium Bromide
EINECS	Contact for details

Quality Control

Our Triphenyl-(4-Pyridinylmethyl)-Phosphoniumbromide is manufactured under strict quality management systems. Each batch undergoes rigorous analytical testing, including HPLC, NMR, and elemental analysis, to ensure high purity and consistent performance. Certificates of Analysis (COA) detailing identity, purity, 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 in a cool, dry, and well-ventilated area at room temperature (15-25°C). Due to its hygroscopic nature, the container must be kept tightly sealed to prevent moisture absorption, which can affect product stability and performance.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 98.0%
Loss on Drying	≤ 1.0%
Residue on Ignition	≤ 0.1%
Heavy Metals	≤ 20 ppm

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