Description

n-(Phenyloctadecyl)Propane-1,3-Diamine is a high-purity, long-chain diamine surfactant and chemical intermediate. This compound is valued for its unique amphiphilic structure, combining a hydrophobic alkyl chain with a hydrophilic amine-functionalized aromatic head group, which provides excellent surface activity and chelating properties. It is primarily utilized by manufacturers in the lubricant, corrosion inhibitor, and specialty surfactant industries for formulating high-performance additives and functional fluids.

Application

• As a key intermediate in the synthesis of ashless dispersants and detergents for high-performance lubricant and fuel additive packages.
• Functioning as a corrosion inhibitor and metal deactivator in industrial lubricants, greases, and metalworking fluids.
• Utilized as a surfactant and emulsifying agent in specialty chemical formulations for enhanced wetting and dispersion.
• Acting as a chelating agent and stabilizer in polymer production and resin systems.
• Employed in the manufacture of textile auxiliaries and fabric softeners for improved fiber processing.
• Serving as a raw material for quaternary ammonium compounds (quats) with biocidal or antistatic properties.

Basic Information

Product Name	n-(Phenyloctadecyl)Propane-1,3-Diamine
CAS No.	25897-00-1
Molecular Formula	C₂₇H₅₀N₂
Molecular Weight	402.70 g/mol
Synonyms	N-(Phenyloctadecyl)-1,3-propanediamine; N-(Phenyloctadecyl)propane-1,3-diamine; 1,3-Propanediamine, N-(phenyloctadecyl)-; N-Octadecyl-N-phenyl-1,3-propanediamine; Octadecylphenylpropanediamine; Diamine S; Lubrizol 539; Aromatic diamine surfactant; Long-chain alkylaryl diamine
EINECS	Contact for details

Quality Control

Our n-(Phenyloctadecyl)Propane-1,3-Diamine is manufactured under a strict quality management system. Each batch undergoes rigorous analytical testing to ensure consistent purity, chemical identity, and performance characteristics. Certificates of Analysis (COA) documenting key parameters such as assay, amine value, and color are available upon request to support your quality assurance protocols.

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 product is hygroscopic (moisture-sensitive); containers must be kept tightly sealed to prevent absorption of atmospheric moisture and carbon dioxide, which can affect product quality.

Specification

Item	Specification
Appearance	Clear, viscous liquid
Color (Gardner)	≤ 5
Identification (IR)	Conforms
Assay (Titration)	≥ 95.0%
Amine Value (mg KOH/g)	Contact for details
Water Content (KF)	≤ 0.5%

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