Description

(2-Carboxyethyl)Triphenylphosphonium Bromide is a versatile organophosphorus reagent, widely recognized for its role as a key intermediate in the synthesis of ylides for Wittig olefination reactions. Its primary commercial value lies in enabling the efficient, stereoselective construction of carbon-carbon double bonds, a fundamental transformation in fine chemical and pharmaceutical manufacturing. This compound is essential for R&D chemists and process development scientists in the pharmaceutical, agrochemical, and advanced materials sectors seeking to synthesize complex alkenes and conjugated systems.

Application

• Wittig Reaction Intermediate: Serves as a crucial precursor for generating stabilized ylides to produce α,β-unsaturated esters and related compounds.
• Pharmaceutical Synthesis: Used in the production of active pharmaceutical ingredients (APIs) and key chiral intermediates requiring specific alkene geometries.
• Agrochemical Manufacturing: Applied in the synthesis of herbicide and pesticide molecules that incorporate unsaturated carboxylic acid derivatives.
• Material Science Research: Facilitates the creation of functionalized olefins for polymer modification and advanced organic materials.
• Fine Chemical Production: Enables the synthesis of flavors, fragrances, and specialty chemicals with defined double bond configurations.
• Academic & Industrial R&D: A standard reagent in laboratory-scale organic synthesis and process chemistry development for C=C bond formation.

Basic Information

Product Name	(2-Carboxyethyl)Triphenylphosphonium Bromide
CAS No.	51114-94-4
Molecular Formula	C21H20BrO2P
Molecular Weight	415.26 g/mol
Synonyms	3-Carboxypropyltriphenylphosphonium Bromide; (3-Carboxypropyl)triphenylphosphonium Bromide; Triphenyl(3-carboxypropyl)phosphonium Bromide; 2-Carboxyethyltriphenylphosphonium Bromide; β-Carboxyethyltriphenylphosphonium Bromide; Phosphonium, (3-carboxypropyl)triphenyl-, bromide; PPN-3-COOH Br
EINECS	Contact for details

Quality Control

Our (2-Carboxyethyl)Triphenylphosphonium Bromide is manufactured under a strict quality management system. Each batch undergoes rigorous analytical testing to ensure high purity and consistency, meeting the stringent requirements of synthesis and process chemistry. A comprehensive Certificate of Analysis (COA) detailing identity, purity, and impurity profiles is provided with every shipment to support your quality assurance protocols.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at a controlled room temperature (15-25°C). This product is hygroscopic (moisture-sensitive) and must be kept under anhydrous conditions. For long-term storage, consider using a desiccator or storing under an inert atmosphere.

Specification

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