Description

3-[[2-(Methacryloyloxy)Ethyl]Dimethylammonio]Propionate is a specialized zwitterionic monomer, also known as a betaine monomer, featuring both a polymerizable methacrylate group and a permanent positive charge balanced by a carboxylate group. This unique structure is critical for imparting exceptional properties such as permanent hydrophilicity, anti-fouling characteristics, and biocompatibility to polymeric materials. It is an essential raw material for manufacturers in the biomedical, personal care, and advanced coating industries seeking to develop high-performance, surface-modifying polymers. The compound is supplied with a CAS No. of 24249-95-4.

Application

• Biomedical Hydrogels & Contact Lenses: A key monomer for creating super-hydrophilic, protein-resistant, and oxygen-permeable hydrogel polymers used in soft contact lenses and wound dressings.
• Non-fouling Surface Coatings: Used to synthesize polymers for anti-biofouling marine coatings, biomedical device coatings, and anti-fog surfaces that resist protein and bacterial adhesion.
• Personal Care & Cosmetic Polymers: Incorporated into hair fixatives, skin care formulations, and mascara to provide long-lasting hold, superior moisture retention, and enhanced comfort.
• Drug Delivery Systems: Serves as a building block for smart polymer carriers that respond to physiological stimuli (e.g., pH) for controlled release of therapeutic agents.
• Chromatography Media: Used to functionalize stationary phases for hydrophilic interaction liquid chromatography (HILIC) to improve separation of polar compounds.
• Enhanced Oil Recovery (EOR): Employed in synthesizing viscosifiers and friction reducers for water-based fracturing fluids that perform in high-salinity environments.

Basic Information

Product Name	3-[[2-(Methacryloyloxy)Ethyl]Dimethylammonio]Propionate
CAS No.	24249-95-4
Molecular Formula	C11H19NO4
Molecular Weight	229.27 g/mol
Synonyms	2-[(2-Methacryloyloxy)ethyl]dimethylammonio]acetate; [2-(Methacryloyloxy)ethyl]dimethyl(3-sulfopropyl)ammonium hydroxide (common misnomer for similar structure); Carboxybetaine methacrylate; CBMA; Zwitterionic methacrylate monomer; DMAPMA-MAA betaine; N,N-Dimethyl-N-(2-methacryloyloxyethyl)-N-(3-carboxypropyl)ammonium betaine; 3-[(2-Methacryloylethyl)dimethylammonio]propanoate
EINECS	Contact for details

Quality Control

Our 3-[[2-(Methacryloyloxy)Ethyl]Dimethylammonio]Propionate is manufactured under a strict quality management system. Each batch undergoes comprehensive analytical testing, including HPLC for purity and assay, NMR for structural confirmation, and Karl Fischer titration for water content, to ensure it meets the stringent requirements for advanced material synthesis. Certificates of Analysis (COA) with full traceability are provided with every shipment. We can support development projects requiring compliance with ISO 9001 standards and relevant ICH guidelines for pharmaceutical excipient development.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry place at 2-8°C (refrigerated) under an inert atmosphere (e.g., nitrogen or argon) to minimize oxidation and polymerization. Allow the container to reach room temperature before opening to prevent moisture condensation. Keep away from heat, sparks, and open flame. For long-term storage, consider addition of a suitable polymerization inhibitor.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 97.0%
Water Content (KF)	≤ 0.5%
Inhibitor (MEHQ)	100 - 250 ppm
Residual Solvents (GC)	Meets ICH limits

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