Description

(7-Carboxyheptyl)Triphenylphosphonium Bromide is a high-purity, organophosphorus salt widely utilized as a key reagent in organic synthesis. Its primary value lies in its role as a versatile Wittig reagent and phase-transfer catalyst, enabling the efficient formation of carbon-carbon double bonds and facilitating reactions in biphasic systems. This compound is essential for researchers and manufacturers in the pharmaceutical, agrochemical, and advanced materials sectors who require reliable, high-quality intermediates for complex molecule construction.

Application

• Wittig Olefination Reactions: A crucial reagent for the synthesis of alkenes from carbonyl compounds, particularly useful for introducing long-chain carboxylic acid functionalities.
• Pharmaceutical Intermediate: Employed in the synthesis of complex drug molecules and bioactive compounds, especially those requiring specific alkene geometries.
• Agrochemical Synthesis: Used in the production of certain pesticides and plant growth regulators that contain unsaturated carboxylic acid derivatives.
• Phase-Transfer Catalysis (PTC): Acts as an effective catalyst for reactions between reagents in immiscible solvents, improving yield and efficiency.
• Polymer & Material Science: Serves as a monomer or functionalization agent in the creation of specialty polymers and advanced materials with tailored surface properties.
• Academic & R&D Laboratories: A fundamental tool for methodological development and exploratory synthesis in organic and medicinal chemistry.

Basic Information

Product Name	(7-Carboxyheptyl)Triphenylphosphonium Bromide
CAS No.	52956-93-1
Molecular Formula	C26H30BrO2P
Molecular Weight	485.39 g/mol
Synonyms	8-Carboxyoctyltriphenylphosphonium Bromide; 7-Carboxyheptyltriphenylphosphonium Bromide; Triphenyl(8-carboxyoctyl)phosphonium Bromide; (8-Carboxyoctyl)triphenylphosphonium Bromide; ω-Carboxyheptyltriphenylphosphonium Bromide; Phosphonium, (7-carboxyheptyl)triphenyl-, bromide; Heptanoic acid, 7-(triphenylphosphonio)-, bromide
EINECS	Contact for details

Quality Control

Our (7-Carboxyheptyl)Triphenylphosphonium Bromide is manufactured under strict quality management systems. Each batch undergoes rigorous analytical testing, including HPLC, NMR, and titration methods, to ensure high chemical purity and consistent performance. Certificates of Analysis (COA) detailing purity, identity, and impurity profiles are provided with every shipment to support your quality assurance and regulatory compliance needs.

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 tightly sealed after each use to prevent degradation from atmospheric moisture. Keep away from incompatible materials.

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.