Description

2-Hydroxy-3-(Methacryloyloxy)-1-Propanesulfonic Acid Sodium Salt is a high-purity, functional monomer widely used in advanced polymer synthesis. Its unique structure, featuring both a polymerizable methacrylate group and a hydrophilic sulfonate group, makes it an essential component for imparting permanent hydrophilicity, ionic character, and improved adhesion to polymer matrices. This compound is critical for manufacturers in the water treatment, coatings, adhesives, and personal care industries seeking to enhance product performance through advanced copolymer technology.

Application

• Water Treatment Polymers: A key monomer for synthesizing scale and corrosion inhibitors, dispersants, and flocculants used in industrial cooling water, boiler water, and reverse osmosis systems.
• Hydrophilic Coatings & Adhesives: Imparts permanent hydrophilicity and adhesion promotion in pressure-sensitive adhesives, marine antifouling coatings, and biocompatible surface coatings.
• Acrylic Fiber Modification: Used to introduce sulfonate groups into acrylic and modacrylic fibers, improving dyeability with cationic dyes and enhancing moisture absorption.
• Personal Care & Cosmetic Polymers: Employed in the synthesis of fixative resins for hairsprays, styling gels, and skin care products where film-forming and moisturizing properties are desired.
• Ion-Exchange Resins & Membranes: Serves as a functional monomer for creating strong acid cation exchange resins and charged nanofiltration or ultrafiltration membranes.
• Concrete & Construction Additives: Incorporated into superplasticizers and water-reducing admixtures to improve the workability and durability of concrete.
• Enhanced Oil Recovery (EOR): Used in polymers for chemical EOR to increase viscosity of injection water and improve oil displacement efficiency.
• Photoresist & Electronic Chemicals: Acts as a component in photoresist polymers for semiconductor manufacturing, providing desired solubility and development characteristics.

Basic Information

Product Name	2-Hydroxy-3-(Methacryloyloxy)-1-Propanesulfonic Acid Sodium Salt
CAS No.	5906-94-5
Molecular Formula	C7H11NaO7S
Molecular Weight	262.21 g/mol
Synonyms	Sodium 2-Hydroxy-3-Methacryloyloxypropane-1-Sulfonate; 2-Hydroxy-3-Methacryloyloxypropyl Sulfonic Acid Sodium Salt; HMPS-Na; 3-Sulfopropyl Methacrylate Sodium Salt; Sodium 3-Sulfopropyl Methacrylate; SPMA; 1-Propanesulfonic Acid, 2-Hydroxy-3-((2-methyl-1-oxo-2-propen-1-yl)oxy)-, Sodium Salt (1:1); 2-Hydroxy-3-Methacryloyloxy-1-Propanesulfonic Acid Sodium Salt
EINECS	227-608-1

Quality Control

Our 2-Hydroxy-3-(Methacryloyloxy)-1-Propanesulfonic Acid Sodium Salt is manufactured under a strict quality management system. Each batch undergoes comprehensive analytical testing to ensure consistency, high purity, and compliance with customer specifications. Certificates of Analysis (COA) documenting identity, assay, impurity profile, and physical parameters are provided with every shipment. We support compliance with global regulatory frameworks including REACH.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at a controlled room temperature (15-25°C). This product is hygroscopic (moisture-sensitive). Keep the container tightly sealed when not in use to minimize exposure to atmospheric humidity. Store away from incompatible materials such as strong oxidizing agents.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0 %
Water Content (KF)	≤ 2.0 %
pH (5% aqueous solution)	6.0 - 8.0
Methacrylic Acid	≤ 0.5 %
Heavy Metals (as Pb)	≤ 10 ppm
Sodium Sulfate	≤ 0.5 %

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