Description

24-Methyl-2,5,8,11,14,17,20,23-Octaoxapentacosane is a high-purity polyethylene glycol (PEG) derivative, specifically a methyl-capped PEG ether. This compound is valued for its role as a versatile, non-ionic surfactant and phase-transfer catalyst in advanced chemical synthesis. It is essential for manufacturers in the pharmaceutical, agrochemical, and specialty polymer industries who require reliable, high-quality intermediates for product development and process optimization.

Application

• Pharmaceutical Intermediate: Used in the synthesis of prodrugs and as a solubilizing agent for active pharmaceutical ingredients (APIs).
• Polymer Chemistry: Serves as a monomer or macromonomer for creating functionalized PEG-based polymers and hydrogels.
• Surface Modification: Acts as a surfactant or coating agent to modify surface properties and enhance biocompatibility of materials.
• Chemical Synthesis: Functions as a phase-transfer catalyst (PTC) to facilitate reactions between immiscible reactants.
• Agrochemical Formulations: Employed as an adjuvant or emulsifier to improve the delivery and efficacy of crop protection agents.
• Cosmetic & Personal Care: Used as a humectant and viscosity modifier in high-performance skincare formulations.

Basic Information

Product Name	24-Methyl-2,5,8,11,14,17,20,23-Octaoxapentacosane
CAS No.	100258-42-2
Molecular Formula	C25H52O8
Molecular Weight	480.68 g/mol
Synonyms	Monomethyl PEG 550; Poly(ethylene glycol) methyl ether (Mn ~550); 2-[2-[2-[2-[2-[2-[2-(2-Methoxyethoxy)ethoxy]ethoxy]ethoxy]ethoxy]ethoxy]ethoxy]ethanol; PEG8 Methyl Ether; mPEG8-OH; α-Methyl-ω-hydroxy-octa(ethylene glycol); Octaethylene glycol monomethyl ether
EINECS	Contact for details

Quality Control

Our 24-Methyl-2,5,8,11,14,17,20,23-Octaoxapentacosane is manufactured under a strict quality management system. Each batch undergoes rigorous analytical testing, including HPLC for purity and identity confirmation, to ensure it meets the high standards required for research and industrial applications. A comprehensive Certificate of Analysis (COA) detailing purity, water content, and other critical parameters is provided with every shipment.

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). Due to its hygroscopic nature, the container must be kept tightly sealed after opening to minimize moisture absorption.

Specification

Item	Specification
Appearance	Colorless to pale yellow viscous liquid
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Water Content (KF)	≤ 0.5%
Average Molecular Weight (Mn)	540 - 560 g/mol
pH (5% solution)	5.0 - 7.0

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