Description

Ethane-1,2-Diylbis(Oxyethane-1,2-Diyl) Distearate is a high-purity, non-ionic surfactant and emulsifier derived from stearic acid and polyethylene glycol. This compound is valued for its excellent stability, lubricity, and ability to form stable emulsions in complex formulations. It is essential for manufacturers in the cosmetics, pharmaceuticals, and polymer industries seeking reliable performance additives for creams, ointments, and plastic processing.

Application

• Cosmetic & Personal Care Formulations: Acts as a primary emulsifier and stabilizer in creams, lotions, and ointments, providing a smooth texture and consistent product performance.
• Pharmaceutical Excipient: Used as a non-ionic surfactant in topical drug delivery systems, enhancing the solubility and absorption of active pharmaceutical ingredients.
• Polymer & Plastic Additive: Functions as an internal lubricant and anti-static agent in the processing of PVC, polyolefins, and other polymers to improve mold release and surface finish.
• Textile & Fiber Processing: Serves as a softening agent, lubricant, and anti-static agent in synthetic fiber production and fabric finishing.
• Industrial Lubricants & Release Agents: Employed in metalworking fluids, mold release formulations, and specialty greases for its lubricating and demolding properties.
• Food-Grade Applications (where compliant): Can be used as an emulsifier or release agent in food contact materials and packaging, subject to specific purity grades and regulatory approval.

Basic Information

Item	Detail
Product Name	Ethane-1,2-Diylbis(Oxyethane-1,2-Diyl) Distearate
CAS No.	25062-49-1
Molecular Formula	C42H82O8
Molecular Weight	715.1 g/mol
Synonyms	PEG-4 Distearate; Polyethylene Glycol (400) Distearate; PEG 400 Distearate; Ethylene Glycol Distearate PEG-4; POE (4) Distearate; Polyoxyethylene (4) Distearate; 2,2'-(Ethane-1,2-diylbis(oxy))bis(ethane-2,1-diyl) distearate; Distearic acid ester of PEG-4
EINECS	246-599-6

Quality Control

Our Ethane-1,2-Diylbis(Oxyethane-1,2-Diyl) Distearate is manufactured under a strict quality management system. Each batch undergoes comprehensive analytical testing to ensure it meets precise specifications for identity, purity, and performance. Certificates of Analysis (COA) documenting key parameters such as assay, acid value, saponification value, and moisture content are provided with every shipment. We can supply grades compliant with cGMP guidelines for pharmaceutical applications and ISO standards for industrial use.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at a controlled room temperature (15-25°C). This product is hygroscopic (moisture-sensitive); the container must be kept tightly sealed to prevent absorption of atmospheric moisture, which can affect product quality and performance.

Specification

Item	Specification
Appearance	White to off-white waxy solid or flakes
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Acid Value	≤ 2.0 mg KOH/g
Saponification Value	145 - 160 mg KOH/g
Hydroxyl Value	≤ 10 mg KOH/g
Melting Point	38 - 45 °C
Moisture (KF)	≤ 0.5%
Heavy Metals (as Pb)	≤ 10 ppm

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