Description

n-[3-(Octadecyloxy)Propyl]Propane-1,3-Diamine is a high-purity, long-chain diamine surfactant and chemical intermediate. This compound is valued for its dual amine functionality and hydrophobic stearyl chain, which provides excellent surface activity and reactivity. It is primarily used by formulators and manufacturers in the production of specialty surfactants, corrosion inhibitors, and epoxy curing agents for industrial and oilfield applications.

Application

• As a key intermediate for synthesizing cationic and amphoteric surfactants.
• In the formulation of corrosion inhibitors and scale inhibitors for oilfield and industrial water treatment.
• As a curing agent or hardener component for epoxy resin systems.
• In the production of fabric softeners, hair conditioners, and other personal care ingredients.
• As an emulsifying and dispersing agent in agrochemical and pesticide formulations.
• For the synthesis of quaternary ammonium compounds (quats) with biocidal properties.
• In asphalt emulsifiers and other construction chemical additives.
• As a chelating agent and metal surface treatment chemical.

Basic Information

Product Name	n-[3-(Octadecyloxy)Propyl]Propane-1,3-Diamine
CAS No.	68867-66-3
Molecular Formula	C24H52N2O
Molecular Weight	384.69 g/mol
Synonyms	N-[3-(Stearyloxy)propyl]-1,3-propanediamine; 3-(Octadecyloxy)propyl-1,3-diaminopropane; 1,3-Propanediamine, N-[3-(octadecyloxy)propyl]-; N-(3-Octadecyloxypropyl)-1,3-propanediamine; Stearyloxypropyldiaminopropane; Diamine S18; Long-chain alkoxy diamine; C18-alkoxy propyl diamine
EINECS	Contact for details

Quality Control

Our n-[3-(Octadecyloxy)Propyl]Propane-1,3-Diamine is manufactured under a strict quality management system. Each batch undergoes comprehensive analytical testing, including assay, identification, and impurity profiling, to ensure high purity and consistent performance. Certificates of Analysis (COA) documenting all specifications are available upon request.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at room temperature (15-25°C). This material is hygroscopic (moisture-sensitive); keep the container tightly sealed to prevent contact with atmospheric moisture.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid or waxy solid
Identification (IR)	Conforms
Assay (GC or Titration)	≥ 95.0%
Water Content (KF)	≤ 1.0%
Primary Amine Value	Contact for details
Total Amine Value	Contact for details

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