Description

Ethenesulfonic Acid Methyl Ester is a versatile organic sulfonate ester with significant utility as a reactive intermediate and building block in advanced chemical synthesis. Its value lies in its ability to introduce sulfonate ester functional groups, which are pivotal for modifying chemical properties and enabling subsequent reactions. This compound is essential for researchers and manufacturers in the pharmaceutical, agrochemical, and specialty polymer industries, where it is used to develop novel active ingredients and functional materials.

Application

• Pharmaceutical Intermediate: Serves as a key building block in the synthesis of active pharmaceutical ingredients (APIs), particularly those requiring sulfonate ester moieties for bioactivity or prodrug design.
• Agrochemical Synthesis: Used in the production of herbicides, fungicides, and insecticides, where the sulfonate group can enhance systemic activity or environmental stability.
• Polymer & Material Science: Acts as a monomer or cross-linking agent in the creation of specialty polymers, including ion-exchange resins, conductive polymers, and coatings with specific surface properties.
• Chemical Research & Development: Employed in organic synthesis laboratories for method development and as a reagent for introducing the methyl ethenesulfonate group into target molecules.
• Dye & Pigment Manufacturing: Utilized in the synthesis of sulfonated dyes and pigments to improve solubility, color fastness, and application performance.
• Surfactant & Detergent Precursor: Functions as a precursor in the production of specialized anionic surfactants for high-performance cleaning and industrial formulations.

Basic Information

Product Name	Ethenesulfonic Acid Methyl Ester
CAS No.	1562-31-8
Molecular Formula	C₃H₆O₃S
Molecular Weight	122.14 g/mol
Synonyms	Methyl ethenesulfonate; 2-Methoxyethene-1-sulfonic acid; Methyl vinylsulfonate; Ethenesulfonic acid, methyl ester; Vinylsulfonic acid methyl ester; Methoxyethenesulfonic acid; Methyl 1-sulfoethenyl ether; NSC 24131
EINECS	Contact for details

Quality Control

Our Ethenesulfonic Acid Methyl Ester is produced under stringent quality management systems to ensure batch-to-batch consistency and reliability. We employ advanced analytical techniques, including HPLC, GC, and NMR, to verify identity, purity, and impurity profiles. Certificates of Analysis (COA) documenting all critical specifications are available upon request to support your quality assurance and regulatory compliance needs.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at a controlled room temperature (typically 15-25°C). Keep away from heat, sparks, and open flame. Due to its reactive nature, isolate from incompatible materials such as strong bases, strong oxidizing agents, and strong reducing agents.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms
Assay (HPLC)	≥ 98.0%
Water Content (KF)	≤ 0.5%
Related Substances (HPLC)	Individual impurity ≤ 0.5%
Density (at 20°C)	~1.25 g/mL

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