Description

2,16-Dimethyl-3,6,9,12,15-Pentaoxaheptadecane is a high-purity polyethylene glycol (PEG) derivative, specifically a symmetrical dimethyl ether of a PEG chain. This compound is valued for its role as a versatile, non-ionic chemical intermediate and phase-transfer catalyst. It is primarily sought by manufacturers in the pharmaceutical, polymer, and specialty chemical industries for applications requiring controlled hydrophilicity and solubility modification.

Application

• Pharmaceutical Intermediate: Used in the synthesis of prodrugs, solubilizing agents, and for modifying the pharmacokinetic properties of active pharmaceutical ingredients (APIs).
• Polymer & Resin Modification: Acts as a chain extender, plasticizer, or cross-linking agent to impart flexibility and hydrophilicity to polyurethanes, epoxies, and other polymers.
• Phase-Transfer Catalyst (PTC): Facilitates reactions between reagents in immiscible phases, particularly in organic synthesis and specialty chemical manufacturing.
• Surfactant & Emulsifier Precursor: Serves as a key building block for non-ionic surfactants used in agrochemicals, coatings, and industrial cleaning formulations.
• Lubricant & Functional Fluid Additive: Employed to enhance the lubricity, thermal stability, and moisture resistance of synthetic lubricants and hydraulic fluids.
• Cosmetic & Personal Care Ingredient: Used as a humectant, solvent, or carrier in high-performance cosmetic formulations.

Basic Information

Product Name	2,16-Dimethyl-3,6,9,12,15-Pentaoxaheptadecane
CAS No.	84696-63-9
Molecular Formula	C₁₄H₃₀O₅
Molecular Weight	278.39 g/mol
Synonyms	Poly(ethylene glycol) dimethyl ether (PEG DME, specific isomer); 3,6,9,12,15-Pentaoxaheptadecane, 2,16-dimethyl-; PEG-5 Dimethyl Ether; Tetraethylene glycol dimethyl ether (extended chain); Bis(2-methoxyethyl) ether derivative; α,ω-Dimethoxy-penta(ethylene glycol); Methoxy-PEG5-methoxy
EINECS	Contact for details

Quality Control

Our 2,16-Dimethyl-3,6,9,12,15-Pentaoxaheptadecane is manufactured under a strict quality management system. Every batch undergoes rigorous analytical testing to ensure high purity and consistency, meeting the stringent requirements of industrial and research applications. A comprehensive Certificate of Analysis (COA) detailing purity, identity, and impurity profiles is provided with each shipment.

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). Keep away from strong oxidizing agents. Under these conditions, the product remains stable for extended periods.

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 (n20/D)	1.435 - 1.445
Density (20°C)	1.00 - 1.05 g/mL

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