Description

Tributyl(Methyl)Phosphonium Tosylate is a quaternary phosphonium salt that serves as a highly effective and versatile phase-transfer catalyst and ionic liquid precursor. Its primary value lies in its ability to facilitate reactions between reagents in immiscible phases, significantly improving reaction rates and yields in organic synthesis. This compound is essential for R&D chemists and process engineers in the pharmaceutical, agrochemical, and specialty chemical industries seeking efficient catalytic solutions.

Application

• Phase-Transfer Catalyst (PTC): Crucial for alkylation, esterification, and nucleophilic substitution reactions in biphasic systems.
• Pharmaceutical Intermediate: Used in the synthesis of active pharmaceutical ingredients (APIs) where high-purity catalytic steps are required.
• Ionic Liquid Synthesis: Acts as a key precursor for the preparation of task-specific phosphonium-based ionic liquids.
• Polymer Chemistry: Employed as a catalyst or initiator in polymerization reactions and the production of specialty polymers.
• Agrochemical Manufacturing: Facilitates the synthesis of complex pesticide and herbicide molecules.
• Organic Synthesis: Enables efficient C-C and C-X bond formation under mild conditions in laboratory and pilot-scale operations.

Basic Information

Product Name	Tributyl(Methyl)Phosphonium Tosylate
CAS No.	55767-12-9
Molecular Formula	C₂₀H₃₇O₃PS
Molecular Weight	388.56 g/mol
Synonyms	Tributylmethylphosphonium p-Toluenesulfonate; Methyltributylphosphonium Tosylate; Phosphonium, tributylmethyl-, salt with 4-methylbenzenesulfonic acid (1:1); Tributylmethylphosphonium p-Toluenesulfonate; Tributyl(methyl)phosphonium 4-methylbenzenesulfonate; Methyltributylphosphonium p-Toluenesulfonate; PPN-OTs (common abbreviation); [CH₃P(C₄H₉)₃][CH₃C₆H₄SO₃]
EINECS	Contact for details

Quality Control

Our Tributyl(Methyl)Phosphonium Tosylate is manufactured under strict quality management systems. Every batch undergoes rigorous analytical testing, including HPLC and NMR, to ensure high chemical purity and consistent performance as a catalyst. Certificates of Analysis (COA) detailing purity, identity, and impurity profiles are provided with each 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 room temperature (15-25°C). This product is hygroscopic (moisture-sensitive); the container must be kept tightly sealed to prevent absorption of atmospheric moisture, which can affect performance.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
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.