Description

Ethanesulfonic Acid Ethyl Ester is a versatile sulfonic acid ester derivative, serving as a crucial building block and reagent in advanced organic synthesis. Its value lies in its role as an effective alkylating agent and a protected sulfonate source, enabling the introduction of the ethanesulfonyl moiety into complex molecular frameworks. This compound is essential for researchers and manufacturers in the pharmaceutical, agrochemical, and specialty chemical industries, particularly for developing active ingredients and functional materials.

Application

• Pharmaceutical Intermediate: Key building block in the synthesis of active pharmaceutical ingredients (APIs), especially those containing sulfonamide or sulfonate ester functionalities.
• Agrochemical Synthesis: Used in the production of herbicides, fungicides, and other crop protection agents requiring specific sulfonyl group chemistry.
• Organic Synthesis Reagent: Acts as an alkylating agent and a precursor for generating other ethanesulfonate derivatives in research and development laboratories.
• Polymer & Material Science: Employed in the modification of polymers and the creation of specialty monomers to impart specific ionic or solubility properties.
• Dye & Pigment Manufacturing: Utilized in the synthesis of sulfonated dyes and colorants for enhanced water solubility and fiber affinity.
• Chemical Research: Serves as a standard or reagent in methodological development and catalytic studies involving sulfonate esters.

Basic Information

Product Name	Ethanesulfonic Acid Ethyl Ester
CAS No.	1912-30-7
Molecular Formula	C4H10O3S
Molecular Weight	138.19 g/mol
Synonyms	Ethyl Ethanesulfonate; Ethyl Ethylsulfonate; Ethanesulfonic Acid Ethyl Ester; Ethylsulfonic Acid Ethyl Ester; ESE; Ethyl Ester of Ethanesulfonic Acid; 1-Ethoxy-1-oxoethane-1-sulfonate; NSC 88411
EINECS	217-625-8

Quality Control

Our Ethanesulfonic Acid Ethyl Ester is manufactured under strict quality management systems. Each batch undergoes rigorous analytical testing, including chromatographic purity assays and identity confirmation, to ensure it meets high-purity standards suitable for synthesis and research applications. A comprehensive Certificate of Analysis (COA) detailing purity, assay, and impurity profiles is provided with every shipment to guarantee traceability and consistency for our global B2B clients.

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 bases, strong oxidizing agents, and sources of ignition. The container should be kept tightly sealed to prevent moisture absorption and potential degradation.

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 (n20D)	1.410 - 1.430
Density (20°C)	1.18 - 1.22 g/cm³

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