Description

[2-(Methacryloyloxy)Ethyl]Trimethylammonium Methyl Sulfate is a high-purity, quaternary ammonium methacrylate monomer, also known as METAMS. This compound is a critical building block for introducing a permanent cationic charge into polymer chains, significantly enhancing their performance in demanding applications. It is essential for manufacturers in the water treatment, personal care, and specialty coatings industries seeking to develop advanced functional polymers with superior binding, flocculation, and conditioning properties.

Application

• Water Treatment Polymers: A key monomer for synthesizing cationic polyelectrolytes and flocculants used in municipal and industrial wastewater clarification, sludge dewatering, and potable water treatment.
• Personal Care & Cosmetics: Used in the production of cationic conditioning polymers for hair care (shampoos, conditioners) and skin care products, providing excellent substantivity, softness, and antistatic properties.
• Paper Manufacturing: Employed in the synthesis of wet-strength resins, retention aids, and drainage aids to improve paper quality, process efficiency, and recycling performance.
• Textile & Leather Processing: Serves as a monomer for creating cationic dye-fixing agents, softening agents, and auxiliaries that improve color fastness and fabric hand feel.
• Enhanced Oil Recovery (EOR): A component in formulating specialty polymers for chemical EOR, improving viscosity and sweep efficiency in reservoir flooding.
• Adhesives & Sealants: Imparts cationic functionality to acrylic adhesives, improving adhesion to various substrates, including negatively charged surfaces.

Basic Information

Product Name	[2-(Methacryloyloxy)Ethyl]Trimethylammonium Methyl Sulfate
CAS No.	6891-44-7
Molecular Formula	C10H21NO6S
Molecular Weight	283.34 g/mol
Synonyms	2-(Methacryloyloxy)ethyltrimethylammonium methyl sulfate; METAMS; Methacryloxyethyltrimethylammonium methyl sulfate; Trimethyl[2-[(2-methyl-1-oxo-2-propen-1-yl)oxy]ethyl]ammonium methyl sulfate; (2-Methacryloyloxyethyl)trimethylammonium methyl sulfate; Quat 188; QM-188; MQAS; 2-Methacryloyloxyethyltrimethylammonium methylsulfate
EINECS	229-995-3

Quality Control

Our [2-(Methacryloyloxy)Ethyl]Trimethylammonium Methyl Sulfate is manufactured under a strict quality management system. Every batch undergoes rigorous analytical testing to ensure consistent purity, performance, and stability. Certificates of Analysis (COA) documenting key parameters such as assay, moisture content, and inhibitor levels are available upon request to support your quality assurance protocols.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated place at room temperature (15-25°C). This product is hygroscopic (moisture-sensitive); containers must be kept tightly sealed to prevent absorption of atmospheric moisture, which can affect product quality and stability.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms
Assay (HPLC)	≥ 75.0% (in water, typically 75-80%)
Water Content (KF)	≤ 25.0 %
Methacrylic Acid	≤ 0.5 %
Inhibitor (MEHQ)	100 - 250 ppm
pH (10% solution)	4.0 - 6.0

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