Description

Ammonium 2-(Sulphonatooxy)Ethyl Methacrylate CAS NO 53621-34-4 is a specialized, water-soluble methacrylate monomer featuring a reactive sulfonate ester group. This unique structure is critical for imparting permanent anionic charge, hydrophilicity, and cross-linking sites into polymer chains. It is an essential building block for manufacturers in the coatings, adhesives, and advanced materials sectors seeking to enhance product performance through ionic functionality.

Application

• Hydrophilic Coatings: Key monomer for producing water-borne, self-crosslinking acrylic resins with excellent adhesion and stability.
• Ion-Exchange Resins & Membranes: Used to synthesize polymers with fixed anionic sites for water treatment, separation, and purification applications.
• Adhesives & Sealants: Imparts improved water resistance and bonding strength to polar substrates in pressure-sensitive and structural adhesives.
• Textile & Leather Chemicals: Serves as a co-monomer in polymer dispersions for durable, hydrophilic finishes and coatings.
• Personal Care Polymers: Employed in the synthesis of fixative resins and film-forming agents for hairsprays and styling products.
• Paper Sizing & Coatings: Enhances the strength, printability, and water resistance of paper products.
• Cross-linking Agent: Functions as a reactive site for creating cross-linked polymer networks in hydrogels and superabsorbent materials.

Basic Information

Product Name	Ammonium 2-(Sulphonatooxy)Ethyl Methacrylate
CAS No.	53621-34-4
Molecular Formula	C6H13NO6S
Molecular Weight	227.24 g/mol
Synonyms	2-(Methacryloyloxy)ethyl sulfonate ammonium salt; Ammonium sulfatoethyl methacrylate; SEM-Ammonium salt; 2-Sulfoethyl methacrylate ammonium salt; Ammonium salt of 2-hydroxyethyl methacrylate sulfate; Methacrylic acid 2-sulfatoethyl ester ammonium salt; Ammonium 2-(methacryloyloxy)ethanesulfonate; AMPS-Ammonium salt (common, but technically distinct)
EINECS	Contact for details

Quality Control

Our production of Ammonium 2-(Sulphonatooxy)Ethyl Methacrylate adheres to stringent quality management protocols. Every batch is analyzed to ensure consistent purity, identity, and performance. A comprehensive Certificate of Analysis (COA) detailing assay, impurity profile, and physical specifications is provided with each shipment to guarantee it meets your precise formulation requirements.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at temperatures between 15-25°C (59-77°F). Due to its hygroscopic nature, the container must be kept tightly sealed after initial use to prevent moisture absorption, which can affect product stability and performance. Keep away from incompatible materials such as strong oxidizing agents.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms
Assay (HPLC)	≥ 95.0%
Water Content (KF)	≤ 3.0%
pH (10% solution)	6.0 - 8.0
Inhibitor (MEHQ)	100 - 300 ppm

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