Description

18-Methyl-2,5,8,11,14,17-Hexaoxanonadecane is a high-purity, non-ionic polyether compound, specifically a methyl-capped polyethylene glycol derivative. This chemical is valued for its excellent solvating properties, chemical stability, and role as a versatile intermediate and phase-transfer catalyst. It is essential for manufacturers in the pharmaceutical, polymer, and specialty chemical industries seeking reliable performance in synthesis and formulation processes.

Application

• Pharmaceutical Intermediate: Used in the synthesis of active pharmaceutical ingredients (APIs) and prodrugs, particularly where PEGylation is required to enhance solubility and bioavailability.
• Polymer Chemistry: Serves as a monomer or chain transfer agent in the production of specialized polyethers, polyesters, and non-ionic surfactants.
• Phase-Transfer Catalyst (PTC): Facilitates reactions between reagents in immiscible phases, crucial in organic synthesis for alkylation, esterification, and polymerization processes.
• Solvent & Reaction Medium: Acts as a polar aprotic solvent for various organic reactions and electrochemical applications.
• Surface Modification Agent: Employed to modify the surface properties of materials, improving hydrophilicity and biocompatibility in medical devices and coatings.
• Formulation Additive: Used in agrochemicals, dyes, and ink formulations to improve stability, dispersion, and delivery.

Basic Information

Item	Detail
Product Name	18-Methyl-2,5,8,11,14,17-Hexaoxanonadecane
CAS No.	63095-29-4
Molecular Formula	C13H28O6
Molecular Weight	280.36 g/mol
Synonyms	2,5,8,11,14,17-Hexaoxanonadecane, 18-methyl-; Methyl-PEG5; 3,6,9,12,15-Pentaoxaheptadecane, 1-methoxy-; Poly(ethylene glycol) methyl ether (n~5); MPEG-250; Methoxy polyethylene glycol 250; PEG monomethyl ether (MW ~250); 1-Methoxy-3,6,9,12,15-pentaoxaheptadecane
EINECS	Contact for details

Quality Control

Our 18-Methyl-2,5,8,11,14,17-Hexaoxanonadecane is produced under a strict quality management system. Each batch undergoes comprehensive analytical testing, including assay, identity confirmation, and impurity profiling, to ensure it meets precise customer specifications. Certificates of Analysis (COA) documenting purity, water content, and other critical parameters are available upon request, supporting compliance in GMP and ISO environments.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at room temperature (15-25°C). This product is hygroscopic (moisture-sensitive). Keep the container tightly sealed under a dry inert atmosphere (e.g., nitrogen) to prevent moisture absorption and degradation.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Assay (GC/HPLC)	≥ 98.0%
Water Content (KF)	≤ 0.5%
Refractive Index (20°C)	1.440 - 1.450
Density (20°C)	~1.10 g/cm³

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