Description

n-Octyltributylphosphonium Bromide is a high-purity quaternary phosphonium salt with the CAS number 57702-65-5. This compound serves as a versatile and highly effective phase-transfer catalyst and ionic liquid precursor, enabling critical reactions in controlled environments. It is essential for R&D chemists and process engineers in the pharmaceutical, fine chemical, and advanced material synthesis sectors who require reliable, high-performance catalysts for alkylation, polymerization, and other specialized organic transformations.

Application

• Phase-Transfer Catalysis (PTC): A key catalyst for facilitating reactions between reagents in immiscible phases, particularly in alkylation, esterification, and ether synthesis under mild conditions.
• Pharmaceutical Intermediate Synthesis: Used in the manufacture of active pharmaceutical ingredients (APIs) where its catalytic properties drive efficient and selective bond-forming steps.
• Ionic Liquid Synthesis: Acts as a crucial precursor for creating tailored phosphonium-based ionic liquids, which are used as "green" solvents and electrolytes.
• Polymer Chemistry: Employed as a catalyst or initiator in the synthesis of specialty polymers, including polycarbonates and epoxies.
• Fine Chemical Manufacturing: Enables high-yield production of complex organic molecules, dyes, and fragrances where traditional catalysts are ineffective.
• Material Science: Utilized in surface modification and the creation of advanced functional materials due to its surfactant-like properties.

Basic Information

Product Name	n-Octyltributylphosphonium Bromide
CAS No.	57702-65-5
Molecular Formula	C₂₀H₄₄BrP
Molecular Weight	395.44 g/mol
Synonyms	Tributyl(octyl)phosphonium bromide; Octyltributylphosphonium bromide; Phosphonium, tributyloctyl-, bromide; 1-Octyltributylphosphonium bromide; Tributyloctylphosphonium bromide; OTBPB; Tetrabutylphosphonium bromide analogue
EINECS	Contact for details

Quality Control

Our n-Octyltributylphosphonium Bromide is manufactured under strict quality management systems. Each batch undergoes comprehensive analytical testing, including NMR, HPLC, and titration, to ensure high purity and consistency. A Certificate of Analysis (COA) detailing identity, assay, and impurity profiles is provided with every shipment to guarantee it meets your specific research or production requirements.

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 must be kept under anhydrous conditions to maintain stability and efficacy.

Specification

Item	Specification
Appearance	White to off-white crystalline powder or solid
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Water Content (KF)	≤ 1.0%
Melting Point	Contact for details
Heavy Metals	< 10 ppm

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