Description

2,5,8,11,14,17,20,23-Octaoxatetracosane is a high-purity polyethylene glycol (PEG) derivative, specifically a PEG-8 dimethyl ether, valued for its exceptional solvating power and chemical inertness. This compound serves as a crucial non-reactive, high-boiling solvent and phase-transfer catalyst in demanding synthetic processes. It is essential for manufacturers in the pharmaceutical, specialty chemical, and electronics industries who require reliable performance in complex formulations and reactions.

Application

• Pharmaceutical Synthesis: Used as a reaction medium and solubilizing agent for APIs, particularly in peptide coupling and polymerization reactions.
• Specialty Chemical Manufacturing: Acts as a high-boiling point solvent for dyes, pigments, and photographic chemicals.
• Polymer & Resin Production: Employed as a plasticizer and processing aid to modify the flexibility and flow properties of polymers.
• Electronics Industry: Serves as a solvent and carrier fluid in the formulation of photoresists and electronic-grade coatings.
• Gas Separation & Absorption: Utilized in specialized formulations for gas scrubbing and separation membranes due to its selective solvation properties.
• Laboratory Research: A valuable reagent in organic synthesis, particularly in reactions requiring anhydrous, polar aprotic conditions.

Basic Information

Product Name	2,5,8,11,14,17,20,23-Octaoxatetracosane
CAS No.	1191-91-9
Molecular Formula	C16H34O8
Molecular Weight	354.44 g/mol
Synonyms	PEG-8 Dimethyl Ether; Dimethoxypolyethylene Glycol 400; Poly(ethylene glycol) dimethyl ether (avg. Mn 400); Bis(2-methoxyethyl) ether, oligomeric; Tetraethylene glycol dimethyl ether; 3,6,9,12-Tetraoxatetradecane, 1,14-dimethoxy-; Glyme-4; Octaglyme
EINECS	214-737-8

Quality Control

Our 2,5,8,11,14,17,20,23-Octaoxatetracosane is manufactured under a cGMP-compliant quality management system (ISO 9001) to ensure batch-to-batch consistency. Every lot is supported by a comprehensive Certificate of Analysis (COA) detailing purity, identity, and key physical parameters. We adhere to stringent in-process controls and final release testing protocols to meet the exacting standards of our global B2B clientele.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at a controlled room temperature (15-25°C). This product is hygroscopic (moisture-sensitive); keep the container tightly sealed to prevent absorption of atmospheric moisture.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms
Assay (GC)	≥ 98.0%
Water Content (KF)	≤ 0.1%
Refractive Index (20°C)	1.430 - 1.435
Density (20°C)	1.08 - 1.12 g/mL
Heavy Metals (as Pb)	≤ 10 ppm

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