Description

Octaethylene Glycol Monobenzyl Ether is a high-purity, non-ionic surfactant and chemical intermediate characterized by its hydrophilic polyethylene glycol chain and hydrophobic benzyl group. This amphiphilic structure makes it a valuable component for formulating stable emulsions and modifying surface properties in advanced materials. It is essential for manufacturers in the pharmaceutical, personal care, and specialty chemical industries seeking precise performance in solubilization, dispersion, and controlled-release applications. The compound is supplied under stringent quality control to ensure batch-to-batch consistency for critical processes.

Application

• Pharmaceutical Excipient: Used as a solubilizing agent and co-surfactant in the formulation of injectable and oral drug delivery systems.
• Polymer & Resin Modification: Acts as a reactive diluent or plasticizer to enhance the flexibility and processing characteristics of specialty polymers.
• Personal Care Formulations: Serves as a mild, non-irritating emulsifier and stabilizer in high-end skincare and cosmetic products.
• Chemical Synthesis: Functions as a versatile protecting group or a hydrophilic linker in organic synthesis and peptide chemistry.
• Agrochemical Adjuvants: Incorporated into pesticide and herbicide formulations to improve wetting, spreading, and active ingredient penetration.
• Laboratory Research: Utilized as a standard or reagent in biochemical and materials science research for studying micelle formation and surface interactions.

Basic Information

Product Name	Octaethylene Glycol Monobenzyl Ether
CAS No.	477775-73-8
Molecular Formula	C25H44O9
Molecular Weight	488.62 g/mol
Synonyms	Benzyl octaethylene glycol ether; PEG-8 Benzyl Ether; Benzyl alcohol ethoxylate (8 EO); Poly(oxy-1,2-ethanediyl), α-(phenylmethyl)-ω-hydroxy- (8 EO); 2-[2-[2-[2-[2-[2-[2-(2-Benzyloxyethoxy)ethoxy]ethoxy]ethoxy]ethoxy]ethoxy]ethoxy]ethanol; Benzyl-PEG8-OH; Monobenzyl octaethylene glycol; α-Benzyl-ω-hydroxy-octa(oxyethylene)
EINECS	Contact for details

Quality Control

Our Octaethylene Glycol Monobenzyl Ether is manufactured under a quality management system compliant with ISO 9001 standards. Each batch undergoes rigorous analytical testing, including HPLC for purity and identity confirmation, to ensure it meets precise customer specifications. A comprehensive Certificate of Analysis (COA) detailing assay, impurity profile, and physical characteristics is provided with every shipment. We support compliance with REACH and other global regulatory frameworks.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at a controlled room temperature (15-25°C). Due to its hygroscopic and easily oxidized nature, the container must be kept tightly sealed under an inert atmosphere (e.g., nitrogen or argon) after opening to prevent moisture absorption and degradation. Keep away from strong oxidizing agents.

Specification

Item	Specification
Appearance	Colorless to pale yellow viscous liquid
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Water Content (KF)	≤ 0.5%
Heavy Metals (as Pb)	≤ 10 ppm
Residue on Ignition	≤ 0.1%
Refractive Index (n20D)	1.465 - 1.475
Density (g/mL at 20°C)	1.10 - 1.15

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