Description

2-Ethyl-2-(Hydroxymethyl)Propane-1,3-Diyl Distearate is a high-purity synthetic ester, specifically a diester of pentaerythritol and stearic acid. This compound is valued for its excellent lubricity, thermal stability, and hydrophobic properties, making it a versatile performance additive. It is primarily sought by formulators in the plastics, cosmetics, and specialty lubricants industries to enhance product functionality and durability.

Application

• Plastic Additive: Acts as an internal and external lubricant and mold release agent in PVC, polyolefins, and engineering plastics.
• Cosmetic & Personal Care: Used as a skin-conditioning emollient, viscosity modifier, and stabilizer in creams, lotions, and makeup formulations.
• Synthetic Lubricants: Serves as a base fluid or performance additive in high-temperature greases and metalworking fluids.
• Rubber Industry: Functions as a processing aid and anti-tack agent to improve flow and release during rubber compounding.
• Coatings & Inks: Imparts slip and mar resistance, and improves pigment dispersion in various coating systems.
• Adhesives & Sealants: Enhances flexibility and water resistance while aiding in processing.

Basic Information

Product Name	2-Ethyl-2-(Hydroxymethyl)Propane-1,3-Diyl Distearate
CAS No.	66753-01-3
Molecular Formula	C41H80O5
Molecular Weight	653.1 g/mol
Synonyms	Pentaerythritol Distearate; Pentaerythrityl Distearate; 2,2-Bis(hydroxymethyl)propane-1,3-diyl distearate; Pentaerythritol Disterate; Pentaerythritol Bis(stearate); Pentaerythrityl Disterate; Distearic Acid Pentaerythritol Ester; Pentaerythritol Ester of Stearic Acid
EINECS	266-478-1

Quality Control

Our 2-Ethyl-2-(Hydroxymethyl)Propane-1,3-Diyl Distearate is manufactured under a strict quality management system. Each batch is tested to ensure it meets precise specifications for identity, purity, and physical properties. Certificates of Analysis (COA) documenting these results are provided to guarantee consistent quality and traceability for your formulations.

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.

Specification

Item	Specification
Appearance	White to off-white waxy solid
Identification (IR)	Conforms
Assay (GC or Titration)	≥ 95.0%
Acid Value	≤ 5.0 mg KOH/g
Hydroxyl Value	≤ 20.0 mg KOH/g
Saponification Value	160 - 180 mg KOH/g
Melting Point	55 - 65 °C
Heavy Metals (as Pb)	≤ 10 ppm

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