Description

Trimethyl[2-(Stearoyloxy)Ethyl]Ammonium Chloride is a quaternary ammonium compound (quat) featuring a long-chain stearate ester, combining cationic and lipophilic properties. This structure is critical for its role as a highly effective cationic surfactant and fabric softener agent, providing excellent softening, antistatic, and emulsifying performance. It is primarily utilized by manufacturers in the textile, personal care, and specialty chemical industries for formulating conditioners, softeners, and biocidal compositions.

Application

• Textile Softening Agent: A key active ingredient in commercial and domestic fabric softeners and conditioners, imparting a soft hand feel and reducing static cling.
• Hair & Skin Care Formulations: Used in rinse-off conditioners, creams, and lotions as a cationic emulsifier and conditioning agent that improves manageability and feel.
• Industrial Surfactant & Emulsifier: Functions in specialty chemical formulations requiring cationic surface activity, such as in asphalt emulsifiers or pigment dispersants.
• Antistatic Agent: Applied in synthetic fiber production and processing to reduce static electricity buildup.
• Biocidal Compositions: Serves as an active component or a formulating agent in disinfectant and sanitizer products due to its quaternary ammonium structure.
• Paper Softening: Used in the paper manufacturing industry to improve the softness of tissue and hygiene paper products.

Basic Information

Product Name	Trimethyl[2-(Stearoyloxy)Ethyl]Ammonium Chloride
CAS No.	25234-57-5
Molecular Formula	C23H48ClNO2
Molecular Weight	406.09 g/mol
Synonyms	Stearamidopropyltrimonium Chloride (common trade name); N,N,N-Trimethyl-2-[(1-oxooctadecyl)oxy]ethanaminium Chloride; 2-[(Stearoyloxy)ethyl]trimethylammonium Chloride; Quaternium-18 (in some cosmetic ingredient nomenclatures); TMSAC; Octadecanoyloxyethyltrimethylammonium Chloride; Stearyl Trimethyl Ammonium Chloride (related compound); STAC
EINECS	246-737-3

Quality Control

Our Trimethyl[2-(Stearoyloxy)Ethyl]Ammonium Chloride is manufactured under a strict quality management system. Each batch is analyzed to ensure it meets precise chemical and physical specifications. A Certificate of Analysis (COA) detailing purity, assay, and impurity profiles is provided and can be tailored to meet specific customer requirements or industry standards.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at room temperature (15-25°C). This material is hygroscopic (moisture-sensitive). Keep the container tightly sealed to minimize exposure to atmospheric humidity. Keep away from strong oxidizing agents.

Specification

Item	Specification
Appearance	White to off-white waxy solid or paste
Identification (IR)	Conforms to structure
Assay (by Titration)	≥ 95.0 %
Melting Point	Contact for details
Loss on Drying	≤ 2.0 %
Heavy Metals (as Pb)	≤ 20 ppm
Residual Solvents	Meets ICH guidelines

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