Description

(Carbethoxymethyl)Triphenylphosphonium Bromide is a versatile and highly reactive Wittig reagent, a key organophosphorus compound in synthetic organic chemistry. Its primary value lies in its ability to facilitate the efficient synthesis of α,β-unsaturated esters via the Wittig olefination reaction, a cornerstone method for constructing carbon-carbon double bonds. This reagent is essential for researchers and process chemists in the pharmaceutical, agrochemical, and advanced materials sectors, enabling the production of complex molecules and fine chemicals with precise stereochemical control.

Application

• Pharmaceutical Intermediate Synthesis: A critical reagent for constructing alkene segments in active pharmaceutical ingredients (APIs) and drug candidates.
• Agrochemical Production: Used in the synthesis of complex molecules for crop protection agents and pesticides.
• Fine Chemical & Specialty Chemical Manufacturing: Enables the production of α,β-unsaturated esters, which are key building blocks for fragrances, flavors, and functional materials.
• Academic & Industrial R&D: A staple reagent in research laboratories for method development and exploring new synthetic pathways.
• Material Science: Potential use in the synthesis of monomers or precursors for polymers and advanced organic materials.

Basic Information

Product Name	(Carbethoxymethyl)Triphenylphosphonium Bromide
CAS No.	1530-45-6
Molecular Formula	C22H22BrO2P
Molecular Weight	429.29 g/mol
Synonyms	(Ethoxycarbonylmethyl)triphenylphosphonium bromide; Carbethoxymethyltriphenylphosphonium bromide; (Ethoxycarbonylmethyl)triphenylphosphonium bromide; Triphenylphosphonium bromide, (ethoxycarbonylmethyl)-; Phosphonium, (carbethoxymethyl)triphenyl-, bromide; Wittig reagent - ethyl (triphenylphosphoranylidene)acetate precursor; EINECS 216-232-4
EINECS	216-232-4

Quality Control

Our (Carbethoxymethyl)Triphenylphosphonium Bromide is manufactured under strict quality management systems. Each batch undergoes rigorous analytical testing to ensure high purity and consistency, meeting the stringent requirements of research and industrial synthesis. A comprehensive Certificate of Analysis (COA) detailing purity, identity, and impurity profiles is provided with every shipment to guarantee traceability and support your quality assurance protocols.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated place at room temperature (15-25°C). This product is hygroscopic (moisture-sensitive) and should be handled in a dry environment to prevent degradation.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Melting Point	158 - 162 °C
Loss on Drying	≤ 1.0 %

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