Description

4-[(3-Methacrylamidopropyl)Dimethylammonio]Butane-1-Sulfonate is a high-purity zwitterionic monomer featuring a polymerizable methacrylate group and a sulfobetaine moiety. This compound is valued for its ability to impart permanent, non-leaching hydrophilic and antifouling properties to polymer surfaces and hydrogels. It is a critical raw material for manufacturers in the biomedical, specialty coatings, and advanced material sectors seeking to enhance biocompatibility, reduce protein adsorption, and improve surface wettability.

Application

• Biomedical Polymers & Hydrogels: Key monomer for creating non-fouling contact lenses, wound dressings, drug delivery systems, and implant coatings.
• Antifouling & Marine Coatings: Used in copolymer formulations to prevent biofouling on ship hulls, underwater sensors, and aquaculture equipment.
• Chromatography Media: Employed in the synthesis of hydrophilic interaction chromatography (HILIC) stationary phases for improved biomolecule separation.
• Protein-Resistant Surfaces: Essential for modifying diagnostic devices, biosensors, and microfluidic chips to minimize non-specific binding.
• Enhanced Oil Recovery (EOR): Serves as a functional monomer in polymers used for viscosity modification and improved sweep efficiency.
• Personal Care & Cosmetics: Incorporated into formulations for long-lasting moisturization and skin-friendly polymer films.

Basic Information

Product Name	4-[(3-Methacrylamidopropyl)Dimethylammonio]Butane-1-Sulfonate
CAS No.	83623-32-9
Molecular Formula	C15H30N2O4S
Molecular Weight	334.48 g/mol
Synonyms	SBMA; Sulfobetaine methacrylate; N-(3-Methacrylamidopropyl)-N,N-dimethyl-N-(3-sulfopropyl)ammonium betaine; 3-[(3-Methacryloylamino)propyl]dimethylammonio]propane-1-sulfonate; 2-Propenoic acid, 2-methyl-, 2-[[(dimethylamino)propyl]amino]-2-oxoethyl ester, inner salt; MPC (Note: MPC typically refers to 2-methacryloyloxyethyl phosphorylcholine, a different zwitterion); Zwitterionic monomer SBMA; DMAPS-MAA; Betaine sulfopropyl methacrylamide
EINECS	Contact for details

Quality Control

Our 4-[(3-Methacrylamidopropyl)Dimethylammonio]Butane-1-Sulfonate is manufactured under strict quality management systems. Each batch is subjected to rigorous analytical testing, including NMR, HPLC, and Karl Fischer titration, to ensure high purity, correct structure, and compliance with specified limits for residual solvents and moisture. Certificates of Analysis (COA) detailing all test results are provided with every shipment.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry place at 15-25°C. This product is hygroscopic (moisture-sensitive). To maintain purity and prevent degradation, the container should be kept sealed under an inert atmosphere (e.g., nitrogen or argon) after opening and stored in a desiccator.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 98.0%
Water Content (KF)	≤ 1.0%
Residual Solvents (GC)	Meets ICH guidelines
Melting Point	Contact for details

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