Description

Methyldioctadecyl(3-Sulphopropyl)Ammonium Hydroxide is a high-purity quaternary ammonium compound with a unique sulfopropyl functional group. This structure provides a powerful combination of cationic and anionic properties, making it a highly effective and versatile specialty surfactant. It is essential for industries requiring advanced phase transfer catalysts, emulsifiers, or antistatic agents. Key applications span from advanced material synthesis to high-performance formulation chemistry.

Application

• Phase Transfer Catalyst (PTC): A highly effective catalyst for reactions between reagents in immiscible phases, particularly in organic synthesis and polymer manufacturing.
• Specialty Surfactant/Emulsifier: Used in the formulation of high-performance emulsions, dispersions, and coatings due to its unique dual-charge structure.
• Antistatic Agent: Imparts antistatic properties to plastics, synthetic fibers, and films in the polymer and textile industries.
• Biocide/Disinfectant Intermediate: Serves as a precursor or active component in the synthesis of advanced quaternary ammonium-based biocides.
• Analytical Chemistry Reagent: Employed as an ion-pairing agent in High-Performance Liquid Chromatography (HPLC) for the separation of complex ionic compounds.
• Material Science: Used in the surface modification of nanoparticles and in the synthesis of advanced ionic materials and conductive polymers.

Basic Information

Product Name	Methyldioctadecyl(3-Sulphopropyl)Ammonium Hydroxide
CAS No.	45319-57-1
Molecular Formula	C40H85NO4S
Molecular Weight	676.2 g/mol
Synonyms	Dimethyldioctadecyl(3-Sulfopropyl)ammonium hydroxide; Distearyldimethylammonium-3-sulfopropylbetaine; 3-(Dioctadecylmethylammonio)propane-1-sulfonate hydroxide; Dioctadecylmethyl(3-sulfopropyl)ammonium hydroxide; DODMSPA; (3-Sulfopropyl)dioctadecylmethylammonium hydroxide; Stearyldimethylammonium propane sulfobetaine; Quaternary ammonium sulfobetaine surfactant
EINECS	Contact for details

Quality Control

Our Methyldioctadecyl(3-Sulphopropyl)Ammonium Hydroxide is manufactured under a strict quality management system. Each batch undergoes rigorous analytical testing, including assay by titration, identification by FT-IR, and impurity profiling, to ensure it meets precise specifications for purity and performance. A comprehensive Certificate of Analysis (COA) documenting all test results is provided with every shipment to guarantee traceability and compliance.

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); the container must be kept tightly sealed to prevent absorption of atmospheric moisture, which can affect product quality and performance.

Specification

Item	Specification
Appearance	White to off-white powder or waxy solid
Identification (IR)	Conforms to reference spectrum
Assay (Titration)	≥ 95.0 %
Water Content (KF)	≤ 3.0 %
Residue on Ignition	≤ 0.5 %
Heavy Metals (as Pb)	≤ 20 ppm

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