Description

Tri(Ethylene Glycol) Monomethyl Ether Tosylate is a high-purity organic chemical intermediate, specifically a tosylate ester derivative of a glycol ether. This compound is valued for its role as a versatile alkylating agent and protecting group reagent in sophisticated organic synthesis. It is primarily sought after by research and development laboratories and production facilities in the pharmaceutical, agrochemical, and specialty chemical industries for constructing complex molecular architectures.

Application

• Pharmaceutical Intermediate: Key building block in the synthesis of active pharmaceutical ingredients (APIs), particularly for introducing functionalized ethylene glycol chains.
• Agrochemical Synthesis: Used in the production of advanced herbicides, fungicides, and plant growth regulators requiring specific solubility properties.
• Polymer & Material Science: Serves as a monomer or cross-linking agent in the development of specialty polymers, resins, and functional materials.
• Organic Synthesis Reagent: Acts as an efficient alkylating agent in nucleophilic substitution reactions (SN2) under mild conditions.
• Protecting Group Chemistry: Employed to temporarily protect hydroxyl groups during multi-step synthetic sequences.
• Liquid Crystal & Electronic Chemicals: Intermediate in the manufacture of compounds for display technologies and electronic applications.

Basic Information

Product Name	Tri(Ethylene Glycol) Monomethyl Ether Tosylate
CAS No.	62921-75-9
Molecular Formula	C15H24O7S
Molecular Weight	348.42 g/mol
Synonyms	2-[2-[2-(2-Methoxyethoxy)ethoxy]ethoxy]ethyl 4-methylbenzenesulfonate; Triethylene glycol monomethyl ether tosylate; PEG3 monomethyl ether tosylate; mPEG3-OTs; 4-Methylbenzenesulfonic acid 2-[2-[2-(2-methoxyethoxy)ethoxy]ethoxy]ethyl ester; Tri(ethylene glycol) methyl ether tosylate; 2,5,8,11-Tetraoxatridecan-13-yl 4-methylbenzenesulfonate; TEGMME tosylate
EINECS	Contact for details

Quality Control

Our Tri(Ethylene Glycol) Monomethyl Ether Tosylate is manufactured under strict quality management systems. Each batch undergoes comprehensive analytical testing, including chromatography (HPLC, GC) and spectroscopic methods (NMR, IR), to ensure high chemical purity and consistency. Certificates of Analysis (COA) documenting identity, assay, and impurity profiles are provided with every shipment to support your quality assurance protocols.

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). This product is hygroscopic (moisture-sensitive); keep the container tightly sealed under an inert atmosphere (e.g., nitrogen or argon) for long-term storage to prevent degradation.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Water Content (KF)	≤ 0.5%
Related Substances (HPLC)	Total impurities ≤ 2.0%

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