Description

(4-Carboxybutyl)Triphenylphosphonium Bromide is a high-purity, versatile organophosphorus reagent, specifically a phosphonium salt, widely utilized in organic synthesis. Its primary value lies in its role as a key intermediate for the preparation of ylides used in Wittig olefination reactions, enabling the precise construction of carbon-carbon double bonds. This compound is essential for researchers and manufacturers in the pharmaceutical, agrochemical, and advanced materials sectors who require reliable, high-quality building blocks for complex molecule synthesis.

Application

• Wittig Reaction Intermediate: Serves as a crucial precursor for generating stabilized ylides to synthesize α,β-unsaturated carboxylic acids and esters.
• Pharmaceutical Synthesis: Used in the production of active pharmaceutical ingredients (APIs) and complex drug candidates requiring specific alkene geometries.
• Agrochemical Development: Applied in the synthesis of novel herbicides, fungicides, and plant growth regulators.
• Material Science Research: Acts as a building block for creating functionalized polymers and organic electronic materials.
• Fine Chemical Manufacturing: Employed in the custom synthesis of specialty chemicals and flavors & fragrances.
• Academic & R&D Laboratories: A standard reagent for methodological development and exploratory organic chemistry.

Basic Information

Product Name	(4-Carboxybutyl)Triphenylphosphonium Bromide
CAS No.	17814-85-6
Molecular Formula	C24H26BrO2P
Molecular Weight	457.34 g/mol
Synonyms	5-(Triphenylphosphonio)valeric Acid Bromide; 5-(Triphenylphosphoranylidene)pentanoic Acid Bromide; 4-Carboxybutyltriphenylphosphonium Bromide; γ-Carboxypropyltriphenylphosphonium Bromide; (5-Carboxypentyl)triphenylphosphonium Bromide; P,P,P-Triphenyl-5-phosphoniapentanoic Acid Bromide; Valeric Acid, 5-(triphenylphosphonio)-, Bromide
EINECS	Contact for details

Quality Control

Our (4-Carboxybutyl)Triphenylphosphonium Bromide is manufactured under a strict quality management system. Each batch undergoes comprehensive analytical testing, including HPLC for purity and NMR for structural confirmation, to ensure it meets exacting standards for research and industrial use. A Certificate of Analysis (COA) detailing all specifications is provided with every shipment to guarantee traceability and consistency.

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). 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
Identification (NMR)	Conforms to structure
Purity (HPLC)	≥ 97.0%
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.