Description

[2-[2-(2-Methoxyethoxy)Ethoxy]Ethoxy] P& CAS NO 518012-62-9 is a specialized polyethylene glycol (PEG) derivative, specifically a methoxy-terminated tetraethylene glycol, known for its excellent solubility and chain transfer properties. This compound is a crucial intermediate and functional additive in advanced material synthesis, offering precise control over polymer architecture and surface modification. It is primarily needed by R&D laboratories and industrial manufacturers in the pharmaceutical, polymer, and specialty chemical sectors for applications ranging from drug delivery systems to high-performance surfactants and coatings.

Application

• Pharmaceutical Intermediate: Used in the synthesis of prodrugs, PEGylated active pharmaceutical ingredients (APIs), and as a solubilizing linker in bioconjugation.
• Polymer & Material Science: Acts as a chain transfer agent (CTA) or initiator in controlled radical polymerization (e.g., RAFT, ATRP) to create well-defined polymers and block copolymers.
• Surface Modification Agent: Employed to create hydrophilic, protein-resistant, or "stealth" coatings on nanoparticles, medical devices, and diagnostic surfaces.
• Specialty Surfactant & Emulsifier: Functions as a non-ionic surfactant in formulations requiring specific hydrophilic-lipophilic balance (HLB) values.
• Organic Synthesis Building Block: Serves as a versatile spacer or hydrophilic moiety in the synthesis of complex organic molecules and dendrimers.
• Lubricant & Plasticizer Additive: Used as a component in specialty lubricants and as a plasticizer for specific polymer matrices.

Basic Information

Item	Detail
Product Name	[2-[2-(2-Methoxyethoxy)Ethoxy]Ethoxy] P& CAS NO 518012-62-9
CAS No.	518012-62-9
Molecular Formula	C11H24O6
Molecular Weight	252.31 g/mol
Synonyms	2-[2-(2-Methoxyethoxy)ethoxy]ethoxy] P; Tetraethylene glycol monomethyl ether; mPEG4-OH; Methoxy tetraethylene glycol; 2,5,8,11-Tetraoxatridecan-13-ol; 3,6,9,12-Tetraoxatetradecan-1-ol, 14-methoxy-; PEG4 monomethyl ether; MeO-PEG4-OH
EINECS	Contact for details

Quality Control

Our [2-[2-(2-Methoxyethoxy)Ethoxy]Ethoxy] P& CAS NO 518012-62-9 is produced under a strict quality management system. Each batch undergoes rigorous analytical testing to ensure high purity and consistency, meeting the stringent requirements for research and industrial use. Certificates of Analysis (COA) detailing purity, identity, and impurity profiles are provided and available upon request.

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 properties, it is recommended to store under an inert atmosphere (e.g., nitrogen or argon) to prevent oxidation and minimize moisture absorption.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 95.0%
Water Content (KF)	≤ 0.5%
Refractive Index (n20D)	1.445 - 1.455
Density (g/mL, 20°C)	1.08 - 1.12

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