Description

Pentaethylene Glycol Mono Methyl Ether Tosylate is a high-purity, functionalized chemical intermediate featuring a reactive tosylate leaving group. This compound is critical for researchers and manufacturers requiring precise, controlled introduction of a polyether chain into target molecules. It is primarily utilized in the synthesis of specialized surfactants, phase-transfer catalysts, and as a key building block in pharmaceutical and advanced material development.

Application

• Pharmaceutical Intermediate: Used in the synthesis of active pharmaceutical ingredients (APIs) and prodrugs requiring solubilizing polyether chains.
• Specialty Surfactant Synthesis: Serves as a key precursor for non-ionic surfactants with specific hydrophilic-lipophilic balance (HLB) values.
• Polymer & Material Science: Employed as a functional monomer or cross-linking agent for creating polymers with tailored solubility and surface properties.
• Phase-Transfer Catalyst (PTC) Precursor: Used to synthesize quaternary ammonium salts that act as efficient catalysts in biphasic reactions.
• Ligand & Chelator Development: Acts as a starting material for creating polyether-based ligands used in metal complexation and catalysis.
• Chemical Research & Development: A versatile building block for organic synthesis, particularly in nucleophilic substitution reactions to install ether functionalities.

Basic Information

Item	Detail
Product Name	Pentaethylene Glycol Mono Methyl Ether Tosylate
CAS No.	80755-67-5
Molecular Formula	C19H32O9S
Molecular Weight	436.52 g/mol
Synonyms	2-[2-[2-[2-[2-(4-Methylbenzenesulfonyloxy)ethoxy]ethoxy]ethoxy]ethoxy]ethoxyethanol; PEG-5 Methyl Ether Tosylate; Methoxy PEG5 Tosylate; 4-Methylbenzenesulfonic Acid 2-[2-[2-[2-[2-(2-Methoxyethoxy)ethoxy]ethoxy]ethoxy]ethoxy]ethyl Ester; Poly(ethylene glycol) methyl ether 5-tosylate; mPEG5-OTs; Tosyl-PEG5-OMe
EINECS	Contact for details

Quality Control

Our Pentaethylene Glycol Mono Methyl Ether Tosylate is manufactured under strict quality management systems. Each batch undergoes rigorous analytical testing, including HPLC, NMR, and Karl Fischer titration, to ensure high chemical purity and consistency. A comprehensive Certificate of Analysis (COA) detailing identity, purity, and impurity profiles is provided with every shipment to support your quality assurance protocols.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at room temperature (15-25°C). This material is hygroscopic (moisture-sensitive); containers must be kept tightly sealed to prevent degradation from atmospheric moisture.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 95.0%
Water Content (KF)	≤ 0.5%

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