Description

Dimethyl(3-Mercaptopropyl)Ammonium Chloride is a versatile quaternary ammonium salt featuring a reactive thiol (mercapto) functional group. This unique bifunctional structure makes it a valuable intermediate for synthesizing specialty surfactants, polymers, and biocidal agents. It is particularly sought after by manufacturers in the personal care, textile, and water treatment industries for its ability to impart cationic charge and introduce sulfur-based reactivity.

Application

• Polymer Modification: Key monomer or chain transfer agent for the synthesis of cationic polymers and polyelectrolytes with tailored molecular weights.
• Surfactant Synthesis: Intermediate for producing novel cationic and zwitterionic surfactants used in fabric softeners, hair conditioners, and antistatic agents.
• Biocidal Formulations: Building block for creating quaternary ammonium compounds (QACs) with enhanced antimicrobial activity for disinfectants and preservatives.
• Textile Auxiliaries: Used in the production of leveling agents, dye fixatives, and softening agents for fibers and fabrics.
• Paper Chemicals: Component in retention aids, drainage aids, and other process chemicals for paper manufacturing.
• Corrosion Inhibition: Acts as a precursor for compounds that protect metal surfaces in industrial cooling and process water systems.
• Epoxy Curing Agents: Serves as a hardener or accelerator in epoxy resin systems, leveraging the reactivity of the thiol group.
• Research & Development: Valuable synthetic intermediate in organic and medicinal chemistry for constructing complex sulfur- and nitrogen-containing molecules.

Basic Information

Product Name	Dimethyl(3-Mercaptopropyl)Ammonium Chloride
CAS No.	55778-17-1
Molecular Formula	C5H14ClNS
Molecular Weight	155.69 g/mol
Synonyms	3-Mercaptopropyldimethylammonium Chloride; (3-Mercaptopropyl)dimethylammonium Chloride; N,N-Dimethyl-3-mercaptopropylammonium Chloride; Dimethyl(3-sulfanylpropyl)azanium Chloride; Mercaptopropyl Dimethyl Ammonium Chloride; MPAC; DMAPA-SH HCl; N,N-Dimethyl-3-aminopropanethiol Hydrochloride
EINECS	Contact for details

Quality Control

Our production of Dimethyl(3-Mercaptopropyl)Ammonium Chloride adheres to strict quality management protocols. Every batch undergoes rigorous analytical testing to ensure consistent purity, identity, and performance. A comprehensive Certificate of Analysis (COA) detailing assay, impurity profile, and physical specifications is provided with each shipment to guarantee compliance with your technical requirements.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated place at a controlled room temperature (15-25°C). Due to its hygroscopic and easily oxidized nature, the container must be kept tightly sealed under an inert atmosphere (e.g., nitrogen) after opening to minimize moisture uptake and oxidation. Keep away from strong oxidizing agents.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Assay (Titration)	≥ 95.0%
Water Content (KF)	≤ 1.0%
pH (10% solution)	4.0 - 7.0
Related Substances (HPLC)	Contact for details

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