Description

(α-Ethoxyvinyl)Triphenylphosphonium Bromide is a specialized Wittig reagent salt, a crucial building block in advanced organic synthesis. Its core value lies in enabling the stereoselective formation of alpha,β-unsaturated ethers and other complex olefins, which are key intermediates in pharmaceutical and fine chemical development. This high-purity reagent is essential for R&D chemists and process development scientists in the pharmaceutical, agrochemical, and advanced materials sectors seeking reliable and scalable synthetic pathways.

Application

• Pharmaceutical Intermediate Synthesis: Key reagent for constructing complex olefinic frameworks found in active pharmaceutical ingredients (APIs).
• Agrochemical Production: Used in the synthesis of advanced insecticide and herbicide intermediates requiring specific alkene geometries.
• Fine Chemical Manufacturing: Enables the production of specialty chemicals, flavors, and fragrances through controlled Wittig olefination reactions.
• Material Science Research: Employed in the synthesis of organic semiconductors and liquid crystal precursors.
• Academic & Industrial R&D: A staple reagent in method development and novel compound library synthesis for drug discovery programs.
• Process Chemistry: Valued for its potential in scalable, stereoselective transformations for pilot plant and commercial manufacturing.

Basic Information

Product Name	(α-Ethoxyvinyl)Triphenylphosphonium Bromide
CAS No.	55552-25-5
Molecular Formula	C22H22BrOP
Molecular Weight	413.29 g/mol
Synonyms	(α-Ethoxyvinyl)triphenylphosphonium bromide; (1-Ethoxyethenyl)triphenylphosphonium bromide; Triphenyl(1-ethoxyethenyl)phosphonium bromide; Ethoxyvinyltriphenylphosphonium bromide; Wittig reagent salt; ETVPBr; Phosphonium, (1-ethoxyethenyl)triphenyl-, bromide
EINECS	Contact for details

Quality Control

Our (α-Ethoxyvinyl)Triphenylphosphonium Bromide is manufactured under strict quality management systems. Each batch undergoes rigorous analytical testing, including NMR, HPLC, and Karl Fischer titration, to ensure high chemical purity and consistent performance. Certificates of Analysis (COA) detailing purity, identity, and impurity profiles are available for every shipment, supporting cGMP and ISO standards for traceability and quality assurance.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated place at a controlled room temperature (15-25°C). Due to its hygroscopic (moisture-sensitive) nature, the container must be kept sealed under an inert atmosphere (e.g., nitrogen or argon) after opening to prevent degradation.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 97.0%
Water Content (KF)	≤ 1.0%
Residue on Ignition	≤ 0.5%

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