Description

Octadecanoic Acid, Ester With 2,2'-[Oxybis(Methylene)]Bis[2-(Hydroxymethyl)-1,3-Propanediol] is a high-purity, multi-functional ester derived from stearic acid and a polyol. This compound is valued for its excellent lubricating properties, thermal stability, and role as a versatile chemical intermediate in advanced formulations. It is essential for manufacturers in the polymer, personal care, and specialty lubricant industries seeking to enhance product performance and processing characteristics.

Application

• Polymer Additive: Acts as an internal and external lubricant and processing aid in PVC, engineering plastics, and synthetic resins to improve flow and reduce friction during extrusion and molding.
• Personal Care & Cosmetics: Serves as an effective emollient, thickener, and stabilizer in creams, lotions, and makeup formulations, providing a smooth texture and skin feel.
• Specialty Lubricants & Greases: Used as a synthetic base oil or additive in high-performance lubricants, metalworking fluids, and release agents due to its low volatility and thermal stability.
• Chemical Intermediate: Employed in the synthesis of more complex esters, surfactants, and plasticizers for tailored performance in various industrial applications.
• Coatings & Inks: Functions as a flow modifier and dispersing agent to enhance the application properties and final finish of paints, coatings, and printing inks.
• Adhesives & Sealants: Improves flexibility, adhesion, and processing characteristics in hot-melt and pressure-sensitive adhesive systems.

Basic Information

Product Name	Octadecanoic Acid, Ester With 2,2'-[Oxybis(Methylene)]Bis[2-(Hydroxymethyl)-1,3-Propanediol]
CAS No.	66555-11-1
Molecular Formula	C48H92O12
Molecular Weight	861.3 g/mol
Synonyms	Pentaerythritol Stearate Ester; Pentaerythrityl Tetrastearate; Pentaerythritol Tetrastearate; PETS; Tetrastearic Acid Pentaerythritol Ester; 2,2-Bis[[3-(octadecanoyloxy)-2,2-bis(hydroxymethyl)propoxy]methyl]propane-1,3-diyl dioctadecanoate; Pentaerythritol Ester of Stearic Acid; Lubricant PETS
EINECS	Contact for details

Quality Control

Our Octadecanoic Acid, Ester With 2,2'-[Oxybis(Methylene)]Bis[2-(Hydroxymethyl)-1,3-Propanediol] is manufactured under a strict quality management system. Each batch undergoes rigorous analytical testing to ensure it meets precise specifications for purity, acid value, hydroxyl value, and melting point. Certificates of Analysis (COA) are provided to guarantee traceability and compliance with relevant industry standards for polymer and lubricant applications.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at room temperature (15-25°C). Keep away from strong oxidizing agents and heat sources to maintain product integrity.

Specification

Item	Specification
Appearance	White to off-white flake or powder
Identification (IR)	Conforms
Assay (HPLC)	≥ 95.0%
Acid Value	≤ 5.0 mg KOH/g
Hydroxyl Value	≤ 15.0 mg KOH/g
Melting Point	55 - 65 °C
Color (APHA)	≤ 100
Moisture (KF)	≤ 0.5%

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