Description

2-Sulfoethyl Methacrylate is a specialized, high-purity monomer featuring a polymerizable methacrylate group and a sulfonic acid functionality. This unique bifunctional structure makes it an essential building block for introducing permanent anionic charge and hydrophilicity into polymer chains. It is critically needed by formulators and polymer chemists in the water treatment, coatings, adhesives, and advanced materials sectors to create products with enhanced ionic conductivity, anti-fouling properties, and improved adhesion to polar substrates.

Application

• Ion-Exchange Resins & Membranes: Key monomer for manufacturing strong acid cation exchange resins and proton-conductive membranes used in water softening, demineralization, and fuel cells.
• Hydrophilic Coatings & Adhesives: Imparts permanent water solubility and adhesion promotion in pressure-sensitive adhesives, textile coatings, and paper sizing agents.
• Dispersants & Superplasticizers: Serves as a critical component in the synthesis of polycarboxylate ether (PCE) superplasticizers for concrete and pigment dispersants.
• Personal Care Polymers: Used in the synthesis of fixative polymers for hairsprays and styling gels, providing humidity resistance and strong hold.
• Antistatic Agents: Incorporated into polymers for electronics packaging and synthetic fibers to dissipate static charge.
• Biomedical Hydrogels: Employed in the development of highly absorbent, charged hydrogels for wound dressings and drug delivery matrices.
• Enhanced Oil Recovery (EOR): Component in polymers used for viscosity modification in flooding operations to improve oil yield.

Basic Information

Product Name	2-Sulfoethyl Methacrylate
CAS No.	10595-80-9
Molecular Formula	C6H10O5S
Molecular Weight	194.20 g/mol
Synonyms	2-(Methacryloyloxy)ethanesulfonic Acid; SEM; 2-Methacryloyloxyethanesulfonic Acid; Methacryloxyethylsulfonic Acid; 2-Sulfoethyl Methacrylate Sodium Salt (common salt form); β-Sulfoethyl Methacrylate; Ethanesulfonic Acid, 2-[(2-Methyl-1-oxo-2-propen-1-yl)oxy]-; HEMAS (Hydroxyethyl Methacrylate Sulfonate, related compound).
EINECS	234-205-0

Quality Control

Every batch of 2-Sulfoethyl Methacrylate is manufactured under a strict quality management system and undergoes comprehensive analytical testing to ensure consistency and purity. We provide full traceability and detailed Certificates of Analysis (COA) for each shipment, confirming compliance with agreed specifications for assay, impurity profiles, and physical properties. Our production adheres to cGMP principles where applicable, ensuring reliability for sensitive applications in pharmaceuticals and personal care.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated place at temperatures between 15-25°C (59-77°F). This product is easily oxidized (store under inert atmosphere) and is light-sensitive (store away from light). Keep away from heat, sparks, and open flame. For long-term storage, consider under an inert gas blanket such as nitrogen or argon to inhibit polymerization and oxidation.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 95.0%
Water Content (KF)	≤ 1.0%
Methacrylic Acid	≤ 1.0%
2-Hydroxyethyl Methacrylate	≤ 0.5%
Inhibitor (MEHQ)	100 - 300 ppm
pH (5% Aq. Solution)	1.5 - 3.5

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