Description

Stearoylethylenimine CAS NO 3891-30-3 is a high-purity specialty chemical intermediate characterized by its unique combination of a long-chain stearoyl group and a reactive ethylenimine (aziridine) moiety. This molecular structure makes it a valuable building block for the synthesis of surface-active agents, polymer modifiers, and functional additives. It is primarily sought by manufacturers in the polymer, coatings, and specialty chemical industries for developing products with enhanced surface properties, adhesion, and chemical resistance.

Application

• As a reactive monomer or cross-linking agent in the production of specialty polymers and resins.
• As a key intermediate for synthesizing cationic surfactants and emulsifiers with antimicrobial properties.
• In the formulation of advanced coatings, adhesives, and sealants to improve surface wetting and adhesion.
• For the modification of textile fibers and fabrics to impart durable water repellency and softness.
• In the development of paper chemicals to enhance strength, sizing, and printability.
• As a precursor for creating quaternary ammonium compounds used in personal care and industrial biocides.
• In lubricant and fuel additive formulations to improve performance characteristics.

Basic Information

Product Name	Stearoylethylenimine
CAS No.	3891-30-3
Molecular Formula	C20H39NO
Molecular Weight	309.53 g/mol
Synonyms	N-Stearoylaziridine; 2-(Octadecanoylamino)ethylenimine; 1-(2-Aziridinyl)-1-octadecanone; N-(1-Aziridinyl)stearamide; Stearic acid aziridide; Aziridine, 1-stearoyl-; Stearoyl ethylenimine
EINECS	223-447-4

Quality Control

Our Stearoylethylenimine is manufactured under a strict quality management system. Each batch undergoes comprehensive analytical testing, including assay, identification, and impurity profiling, to ensure it meets precise specifications. Certificates of Analysis (COA) documenting purity, physical characteristics, and test results are provided to guarantee traceability and compliance with your technical requirements.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at controlled room temperature (15-25°C). Keep away from strong acids, bases, and oxidizing agents. Due to the reactive aziridine group, appropriate safety measures for handling amines should be observed.

Specification

Item	Specification
Appearance	White to off-white solid
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Melting Point	Contact for details
Heavy Metals	< 10 ppm
Residual Solvents	Meets ICH guidelines

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