Description

[3-(Ethoxycarbonyl)Propyl]Triphenylphosphonium Bromide is a high-purity, versatile Wittig reagent salt, essential for the formation of carbon-carbon double bonds in complex organic syntheses. Its primary value lies in enabling the precise and efficient construction of α,β-unsaturated esters, a critical step in the production of fine chemicals and advanced intermediates. This product is indispensable for research chemists and process development scientists in the pharmaceutical, agrochemical, and advanced materials sectors who require reliable, high-quality reagents for demanding synthetic applications.

Application

• Pharmaceutical Intermediate Synthesis: Key reagent in the Wittig olefination reaction for constructing α,β-unsaturated ester moieties found in active pharmaceutical ingredients (APIs).
• Agrochemical Production: Used in the synthesis of complex molecules for crop protection agents and plant growth regulators.
• Fine Chemical Manufacturing: Enables the production of specialty esters, flavors, fragrances, and other high-value organic compounds.
• Advanced Material Research: Employed in the synthesis of monomers and precursors for functional polymers and liquid crystals.
• Academic & Industrial R&D: A fundamental tool in organic chemistry laboratories for method development and novel compound library synthesis.
• Process Chemistry: Suitable for scale-up in pilot plants and commercial manufacturing where yield and purity are critical.

Basic Information

Item	Details
Product Name	[3-(Ethoxycarbonyl)Propyl]Triphenylphosphonium Bromide
CAS No.	50479-11-3
Molecular Formula	C24H26BrO2P
Molecular Weight	457.34 g/mol
Synonyms	(3-Carbethoxypropyl)triphenylphosphonium bromide; 4-(Triphenylphosphonio)butyric acid ethyl ester bromide; Ethyl 4-(triphenylphosphonio)butyrate bromide; (3-Ethoxycarbonylpropyl)triphenylphosphonium bromide; γ-Ethoxycarbonylpropyltriphenylphosphonium bromide; Wittig reagent salt; ETPPB
EINECS	Contact for details

Quality Control

Our [3-(Ethoxycarbonyl)Propyl]Triphenylphosphonium Bromide is manufactured under strict quality management systems. Every batch undergoes rigorous analytical testing, including NMR, HPLC, and titration methods, to ensure high chemical purity and consistent performance as a Wittig reagent. A comprehensive Certificate of Analysis (COA) detailing identity, assay, and impurity profiles is provided with each 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 place at a controlled room temperature (15-25°C). This material is hygroscopic (moisture-sensitive); the container must be kept tightly sealed 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	Contact for details
Loss on Drying	≤ 1.0%
Heavy Metals	< 20 ppm
Residue on Ignition	≤ 0.1%

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