Description

Ethanol, 2-(2-Hydroxyethoxy)-, 1-(4-Methylbenzenesulfonate) is a specialized organic intermediate, specifically a tosylate derivative of a diethylene glycol monoether. This compound is valued for its role as a versatile building block in organic synthesis, where its sulfonate ester group serves as an excellent leaving group for nucleophilic substitution reactions. It is primarily needed by R&D chemists and process development teams in the pharmaceutical, agrochemical, and advanced materials sectors for constructing complex molecular architectures.

Application

• Pharmaceutical Intermediate: Key building block for the synthesis of active pharmaceutical ingredients (APIs), particularly in creating ether-linked side chains or prodrugs.
• Polymer Chemistry: Used as a monomer or chain extender in the production of specialized polyethers, polyesters, and other functional polymers.
• Agrochemical Synthesis: Intermediate in the manufacture of herbicides, pesticides, and plant growth regulators that require ethylene glycol-based motifs.
• Liquid Crystal & Electronic Materials: Serves as a precursor for mesogens and other organic compounds used in display technologies and organic electronics.
• Surface Active Agents: Can be utilized in the synthesis of non-ionic surfactants and emulsifiers with specific hydrophilic-lipophilic balance (HLB) properties.
• Cross-coupling Reactions: Acts as an alkylating agent in palladium-catalyzed and other metal-mediated coupling reactions to introduce functionalized ethoxy chains.

Basic Information

Product Name	Ethanol, 2-(2-Hydroxyethoxy)-, 1-(4-Methylbenzenesulfonate)
CAS No.	118591-58-5
Molecular Formula	C11H16O5S
Molecular Weight	260.31 g/mol
Synonyms	2-(2-Hydroxyethoxy)ethyl 4-methylbenzenesulfonate; Diethylene glycol monomethyl ether tosylate; 2-[2-(p-Toluenesulfonyloxy)ethoxy]ethanol; PEG-2 tosylate; Ethanol, 2-(2-hydroxyethoxy)-, 1-(p-toluenesulfonate); p-Toluenesulfonic acid 2-(2-hydroxyethoxy)ethyl ester; Tetraethylene glycol monotosylate (common misnomer, verify structure); DEG monomethyl ether tosylate
EINECS	Contact for details

Quality Control

Our Ethanol, 2-(2-Hydroxyethoxy)-, 1-(4-Methylbenzenesulfonate) is produced under strict quality management systems. Each batch undergoes rigorous analytical testing, including HPLC for purity and identity confirmation by NMR and IR spectroscopy, to ensure it meets the high standards required for synthetic applications. Certificates of Analysis (COA) documenting purity, assay, and impurity profiles are available upon request to support your quality and regulatory documentation needs.

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 heat, sparks, and open flame. Due to the ester functional group, prolonged exposure to high humidity should be avoided to prevent potential hydrolysis.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 97.0%
Purity (GC)	≥ 96.0%
Water Content (KF)	≤ 0.5%
Residue on Ignition	≤ 0.1%

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