Description

Ethylenebis(Triphenylphosphonium Bromide) is a versatile organophosphonium salt widely used as a phase-transfer catalyst and a key reagent in organic synthesis. Its primary value lies in its ability to facilitate reactions between reagents in immiscible phases, significantly improving yields and reaction rates in industrial processes. This compound is essential for manufacturers and R&D laboratories in the pharmaceutical, agrochemical, and specialty chemical sectors seeking efficient and scalable synthetic pathways.

Application

• As a highly effective phase-transfer catalyst (PTC) for alkylation, esterification, and etherification reactions.
• Key reagent in the synthesis of Wittig-Horner olefination reactions for the production of alkenes.
• Used in the preparation of pharmaceutical intermediates, particularly for complex molecule construction.
• Catalyst in polymer chemistry and the production of specialty polymers.
• Employed in agrochemical synthesis for creating active ingredients and intermediates.
• Facilitates nucleophilic substitution reactions under mild conditions in fine chemical manufacturing.
• Used in material science research for developing novel ionic liquids and functional materials.

Basic Information

Product Name	Ethylenebis(Triphenylphosphonium Bromide)
CAS No.	1519-45-5
Molecular Formula	C38H34Br2P2
Molecular Weight	688.43 g/mol
Synonyms	1,2-Bis(triphenylphosphonio)ethane dibromide; Ethylenebis(triphenylphosphonium) dibromide; 1,2-Ethanediylbis(triphenylphosphonium) dibromide; ETPB; Bis(triphenylphosphonium)ethane dibromide; NSC 169049; Ethylene bis(triphenylphosphonium bromide); P,P'-(1,2-Ethanediyl)bis[triphenylphosphonium] dibromide
EINECS	Contact for details

Quality Control

Our Ethylenebis(Triphenylphosphonium Bromide) is manufactured under strict quality management protocols. Each batch undergoes rigorous analytical testing, including HPLC and NMR, to ensure high purity and consistency. Certificates of Analysis (COA) detailing purity, identity, and impurity profiles are provided with every shipment to guarantee compliance with your specific application requirements.

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 performance.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Loss on Drying	≤ 1.0%
Melting Point	285 - 295 °C (dec.)
Heavy Metals	≤ 20 ppm

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