Description

p-Toluenesulfonic Acid 2-(4-Methoxyphenoxy)Ethyl Ester is a specialized organic ester derivative of p-toluenesulfonic acid, valued for its role as a versatile chemical intermediate and protecting group in complex organic syntheses. Its molecular structure, featuring both sulfonate and aryl ether functionalities, makes it a critical reagent for introducing specific moieties or for temporary protection strategies in multi-step reactions. This compound is essential for research and development chemists and production units in the pharmaceutical, agrochemical, and advanced materials sectors who require high-purity, reliable building blocks for creating novel active ingredients and functional polymers.

Application

• Pharmaceutical Intermediate: Serves as a key building block in the synthesis of active pharmaceutical ingredients (APIs), particularly for compounds requiring sulfonate ester linkages or protected phenol groups.
• Agrochemical Synthesis: Used in the research and production of herbicides, fungicides, and plant growth regulators where its specific ester group is incorporated into the final molecule.
• Polymer Chemistry: Acts as a monomer or modifying agent in the production of specialty polymers, including sulfonated polymers for ion-exchange membranes or materials with specific solubility profiles.
• Organic Synthesis Reagent: Employed as an alkylating agent or a protecting group for alcohols and phenols in complex multi-step laboratory and industrial-scale organic syntheses.
• Liquid Crystal & Electronic Materials: Utilized in the development of precursor compounds for liquid crystals and organic electronic materials due to its stable aromatic and ether components.
• Dye & Pigment Manufacturing: Functions as an intermediate in the synthesis of certain sulfonated dyes and high-performance pigments.

Basic Information

Product Name	p-Toluenesulfonic Acid 2-(4-Methoxyphenoxy)Ethyl Ester
CAS No.	115951-32-1
Molecular Formula	C₁₆H₁₈O₅S
Molecular Weight	322.38 g/mol
Synonyms	2-(4-Methoxyphenoxy)ethyl p-toluenesulfonate; 4-Methylbenzenesulfonic Acid 2-(4-Methoxyphenoxy)ethyl Ester; Tosyl 2-(4-Methoxyphenoxy)ethyl Ester; p-Toluenesulfonyl 2-(4-Methoxyphenoxy)ethyl Ester; 4-Methoxy Phenoxy Ethyl Tosylate; 115951-32-1; Ethanol, 2-(4-methoxyphenoxy)-, 1-(4-methylbenzenesulfonate)
EINECS	Contact for details

Quality Control

Our p-Toluenesulfonic Acid 2-(4-Methoxyphenoxy)Ethyl Ester is manufactured under strict quality management systems. Each batch undergoes rigorous analytical testing, including HPLC for purity and identity confirmation (IR, NMR), to ensure it meets exacting specifications for use in sensitive applications like pharmaceutical synthesis. Certificates of Analysis (COA) detailing batch-specific results are available upon request, providing full traceability and compliance data for your quality assurance protocols.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at a controlled room temperature (15-25°C). Due to its hygroscopic (moisture-sensitive) nature, the container must be kept tightly sealed after opening to prevent degradation from atmospheric moisture. Keep away from incompatible materials such as strong bases and oxidizing agents.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 98.0%
Melting Point	Contact for details
Loss on Drying	≤ 0.5%
Residue on Ignition	≤ 0.1%
Heavy Metals	≤ 20 ppm

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