Description

(5-Carboxypentyl)(Triphenyl)Phosphonium Bromide is a high-purity, functionalized phosphonium salt widely used as a key reagent in organic synthesis. Its primary value lies in its role as a versatile ylide precursor for Wittig olefination reactions, enabling the synthesis of complex molecules with high stereoselectivity. This compound is essential for researchers and manufacturers in the pharmaceutical, agrochemical, and advanced materials sectors who require reliable building blocks for creating fine chemicals and novel compounds.

Application

• Wittig Reaction Reagent: A crucial precursor for generating stabilized ylides used in the synthesis of α,β-unsaturated carboxylic acids and esters.
• Pharmaceutical Intermediates: Employed in the construction of complex drug molecules, particularly those containing extended alkene chains with terminal carboxylic acid functionality.
• Agrochemical Synthesis: Used in the production of certain pesticides and plant growth regulators that require specific olefinic structures.
• Material Science: Acts as a functional monomer or cross-linking agent in the development of specialized polymers and ionic liquids.
• Peptide Modification: Facilitates the introduction of carboxyl-terminated side chains or labels into peptides and biomolecules.
• Catalysis Research: Serves as a ligand precursor or ionic component in the development of novel catalytic systems.

Basic Information

Product Name	(5-Carboxypentyl)(Triphenyl)Phosphonium Bromide
CAS No.	50889-29-7
Molecular Formula	C24H26BrO2P
Molecular Weight	457.34 g/mol
Synonyms	6-(Triphenylphosphonio)hexanoate Bromide; 6-Carboxyhexyltriphenylphosphonium Bromide; 5-Carboxypentyltriphenylphosphonium Bromide; (6-Oxo-6-ethoxyhexyl)triphenylphosphonium Bromide (common precursor); ω-Carboxypentyltriphenylphosphonium Bromide; Hexanoic acid, 6-(triphenylphosphonio)-, bromide; TPHPB; Wittig Reagent for ω-Carboxyalkenes
EINECS	Contact for details

Quality Control

Our (5-Carboxypentyl)(Triphenyl)Phosphonium Bromide is manufactured under strict quality management systems. Each batch undergoes rigorous analytical testing, including NMR (¹H, ³¹P, ¹³C), HPLC for purity assessment, and Karl Fischer titration for moisture content, to ensure consistency and compliance with research and production standards. A comprehensive Certificate of Analysis (COA) detailing all specifications is provided with every shipment.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry place 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 storing under an inert atmosphere such as nitrogen or argon to maintain optimal purity and reactivity.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Identification (NMR)	Conforms to structure
Purity (HPLC)	≥ 97.0%
Water Content (KF)	≤ 1.0%
Melting Point	Contact for details
Residue on Ignition	≤ 0.5%

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