Description

Benzyltriphenylphosphonium Bromide is a versatile and highly reactive quaternary phosphonium salt widely used as a key reagent in organic synthesis. Its primary value lies in its role as a potent ylide precursor for the Wittig reaction, enabling the efficient synthesis of alkenes from carbonyl compounds. This compound is essential for researchers and manufacturers in the pharmaceutical, agrochemical, and advanced materials sectors, where precise olefination reactions are critical for building complex molecular architectures.

Application

• Wittig Reaction Reagent: Serves as a crucial precursor for generating stabilized ylides to synthesize alkenes, styrenes, and other unsaturated compounds.
• Pharmaceutical Intermediates: Used in the synthesis of active pharmaceutical ingredients (APIs) and complex drug molecules requiring specific alkene functionalities.
• Agrochemical Synthesis: Employed in creating pesticides, herbicides, and plant growth regulators that contain olefinic components.
• Material Science & Polymer Chemistry: Facilitates the production of specialty monomers, liquid crystals, and functional polymers.
• Catalysis & Ligand Preparation: Acts as a precursor for phosphine ligands used in transition metal catalysis.
• Organic Synthesis Research: A fundamental tool in academic and industrial R&D laboratories for constructing carbon-carbon double bonds.

Basic Information

Product Name	Benzyltriphenylphosphonium Bromide
CAS No.	29518-68-1
Molecular Formula	C25H22BrP
Molecular Weight	433.32 g/mol
Synonyms	Benzyltriphenylphosphonium Bromide; Benzyl(triphenyl)phosphonium Bromide; (Benzyl)triphenylphosphonium Bromide; Phosphonium, benzyltriphenyl-, bromide; TPPB; BTPPB; Benzyl triphenyl phosphonium bromide; Triphenylbenzylphosphonium Bromide
EINECS	249-714-5

Quality Control

Our Benzyltriphenylphosphonium Bromide is manufactured under strict quality management systems. Each batch undergoes comprehensive analytical testing, including assay (by titration), identification (IR and NMR), and impurity profiling to ensure high chemical purity and consistency. Certificates of Analysis (COA) detailing all test results are provided with every shipment to guarantee compliance with your research or production specifications.

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 should be handled 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 (Titration)	≥ 98.0 %
Melting Point	Approx. 280 - 285 °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.