Description

Benzyltriphenylphosphonium Bromide is a versatile and widely used quaternary phosphonium salt, serving as a key reagent in organic synthesis. Its primary value lies in its effectiveness as a phase-transfer catalyst and a stable ylide precursor for the Wittig reaction, enabling the synthesis of alkenes from carbonyl compounds. This compound is essential for researchers and manufacturers in the pharmaceutical, agrochemical, and specialty chemical industries, where it facilitates critical carbon-carbon bond-forming processes.

Application

• Wittig Reaction Reagent: A fundamental precursor for generating stabilized ylides used in the synthesis of alkenes, a crucial step in creating complex organic molecules.
• Phase-Transfer Catalyst (PTC): Facilitates reactions between reagents in immiscible phases (e.g., aqueous and organic), improving reaction rates and yields in alkylation and other processes.
• Pharmaceutical Intermediate: Used in the synthesis of various active pharmaceutical ingredients (APIs) and drug candidates, particularly those containing olefinic structures.
• Agrochemical Synthesis: Employed in the production of certain pesticides, herbicides, and plant growth regulators that require specific alkene functionalities.
• Polymer & Material Science: Acts as a catalyst or monomer in certain polymerization reactions and in the surface modification of materials.
• Organic Synthesis Research: A staple reagent in academic and industrial R&D laboratories for exploring new synthetic methodologies and constructing complex molecular architectures.

Basic Information

Product Name	Benzyltriphenylphosphonium Bromide
CAS No.	1449-46-3
Molecular Formula	C25H22BrP
Molecular Weight	433.32 g/mol
Synonyms	Benzyltriphenylphosphonium Bromide; Benzyl(triphenyl)phosphonium Bromide; (Bromomethyl)triphenylphosphonium; TPPB; Phosphonium, benzyltriphenyl-, bromide; NSC 163074; Benzyl triphenyl phosphonium bromide; BTPPB
EINECS	215-907-9

Quality Control

Our Benzyltriphenylphosphonium Bromide is manufactured under strict quality management protocols. Each batch undergoes rigorous analytical testing to ensure it meets high-purity standards suitable for synthetic applications. Certificates of Analysis (COA) detailing purity, identity, 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). This product is hygroscopic (moisture-sensitive) and must be kept in a dry environment to prevent degradation. Keep away from strong oxidizing agents.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Melting Point	Approx. 235-240 °C (dec.)
Loss on Drying	≤ 1.0 %
Heavy Metals (as Pb)	≤ 20 ppm

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