Description

(4-Bromobenzyl)Triphenylphosphonium Bromide is a high-purity, versatile organophosphorus reagent essential for advanced chemical synthesis. Its primary value lies in its role as a key Wittig reagent, enabling the efficient construction of carbon-carbon double bonds to create complex olefins and pharmaceutical intermediates. This compound is critically needed by R&D chemists and process development scientists in the pharmaceutical, agrochemical, and advanced materials sectors for constructing specific molecular architectures.

Application

• Wittig Olefination Reactions: As a stabilized ylide precursor for the synthesis of substituted styrenes and other alkenes.
• Pharmaceutical Intermediate Synthesis: For constructing key chiral or complex olefinic segments in active pharmaceutical ingredients (APIs).
• Agrochemical Manufacturing: Used in the synthesis of specific intermediates for crop protection agents and herbicides.
• Ligand and Catalyst Preparation: Serves as a precursor for phosphine ligands used in transition metal catalysis.
• Material Science Research: Employed in the synthesis of organic semiconductors and functional polymers with specific optical or electronic properties.
• Academic and Industrial R&D: A fundamental tool for methodological development and exploratory synthesis in organic chemistry laboratories.

Basic Information

Product Name	(4-Bromobenzyl)Triphenylphosphonium Bromide
CAS No.	51044-13-4
Molecular Formula	C25H21Br2P
Molecular Weight	512.22 g/mol
Synonyms	4-Bromobenzyltriphenylphosphonium Bromide; p-Bromobenzyltriphenylphosphonium Bromide; (p-Bromobenzyl)triphenylphosphonium Bromide; (4-Bromophenylmethyl)triphenylphosphonium Bromide; NSC 169047; Phosphonium, (4-bromobenzyl)triphenyl-, bromide (1:1); Triphenyl(4-bromobenzyl)phosphonium Bromide
EINECS	Contact for details

Quality Control

Our (4-Bromobenzyl)Triphenylphosphonium Bromide is manufactured under strict quality management systems. Each batch undergoes rigorous analytical testing, including HPLC, NMR, and elemental analysis, to ensure high chemical purity and consistent performance. A comprehensive Certificate of Analysis (COA) detailing identity, purity, and impurity profiles is provided with every shipment 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 place at room temperature (15-25°C). Due to its hygroscopic nature, the container must be kept tightly sealed in a dry environment to prevent moisture absorption, which can affect reactivity and stability.

Specification

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