Description

3-Octadecanoyloxy-4-Trimethylazaniumylbutanoate is a quaternary ammonium salt derivative of butanoic acid, esterified with stearic acid. This unique structure imparts both lipophilic and cationic properties, making it a valuable functional ingredient for modifying surface characteristics. It is primarily utilized in the formulation of specialty surfactants, emulsifiers, and conditioning agents. Industries such as personal care, textiles, and specialty polymers seek this compound for its ability to provide softness, antistatic effects, and compatibility with various matrices.

Application

• Surfactant & Emulsifier: Acts as a cationic surfactant in fabric softeners, hair conditioners, and cosmetic creams for enhanced softness and manageability.
• Antistatic Agent: Used in polymer processing and textile finishing to reduce static charge buildup on synthetic fibers and plastics.
• Corrosion Inhibitor: Employed in industrial lubricants and metalworking fluids where its film-forming properties can protect metal surfaces.
• Biocide & Disinfectant Intermediate: Serves as a precursor or synergistic component in the synthesis of quaternary ammonium compound (QAC) based disinfectants.
• Phase Transfer Catalyst: Facilitates reactions between reactants in immiscible phases in organic synthesis due to its amphiphilic nature.
• Paper & Textile Softening: Applied as a softening agent in paper manufacturing and textile treatment to improve hand feel.

Basic Information

Product Name	3-Octadecanoyloxy-4-Trimethylazaniumylbutanoate
CAS No.	1976-27-8
Molecular Formula	C₂₅H₄₉NO₄
Molecular Weight	427.67 g/mol
Synonyms	Stearoylcholine; O-Stearoylcholine; Choline Stearate; (2-Hydroxyethyl)trimethylammonium Stearate; 3-Octadecanoyloxy-N,N,N-trimethyl-1-propanaminium Hydroxide, Inner Salt; Butanoic acid, 4-(trimethylammonio)-, 3-octadecanoate; L-α-Stearoylcholine; Trimethyl(2-stearoyloxyethyl)ammonium
EINECS	217-829-4

Quality Control

Our 3-Octadecanoyloxy-4-Trimethylazaniumylbutanoate is manufactured under a strict quality management system. Each batch undergoes comprehensive analytical testing to ensure identity, purity, and consistency. We provide a Certificate of Analysis (COA) with key parameters including assay, moisture content, and residual solvents. Our quality commitment aligns with cGMP principles where applicable, ensuring reliability for critical applications in personal care and industrial formulations.

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) and must be kept under dry conditions to prevent caking or hydrolysis. Keep away from strong oxidizing agents.

Specification

Item	Specification
Appearance	White to off-white powder or waxy solid
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Loss on Drying	≤ 2.0%
Melting Point	Contact for details
Heavy Metals (as Pb)	≤ 20 ppm
Residual Solvents (GC)	Meets ICH guidelines

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