Description

Polyethylene Glycol Diisostearate is a non-ionic surfactant and emulsifier derived from the esterification of polyethylene glycol with isostearic acid. This compound is valued for its excellent solubilizing, lubricating, and conditioning properties, making it a versatile functional ingredient. It is primarily used by formulators in the personal care, cosmetics, and industrial lubricant sectors to enhance product stability and performance.

Application

• Cosmetic & Personal Care Emulsifier: Acts as a primary or co-emulsifier in creams, lotions, and sunscreens, providing stable oil-in-water emulsions.
• Skin & Hair Conditioner: Imparts a smooth, soft feel and reduces tackiness in leave-on products like moisturizers and hair styling gels.
• Pharmaceutical Ointment Base: Used as a non-irritating solubilizer and emollient in topical drug delivery systems and cosmetic-grade ointments.
• Industrial Lubricant & Release Agent: Serves as a component in synthetic lubricants, mold release agents, and textile fiber spin finishes.
• Plasticizer & Dispersant: Aids in the dispersion of pigments and fillers in various formulations and can act as a secondary plasticizer.

Basic Information

Product Name	Polyethylene Glycol Diisostearate
CAS No.	68958-56-5
Molecular Formula	Typically CnH2n+2Ox (Variable, depends on PEG chain length)
Molecular Weight	Variable (Depends on the specific PEG chain length)
Synonyms	PEG Diisostearate; Poly(oxy-1,2-ethanediyl), α-hydro-ω-hydroxy-, diisooctadecanoate; POE Diisostearate; Polyethylene Glycol Diester of Isostearic Acid; PEG Isostearate Diester; Ethoxylated Isostearic Acid Diester; Isostearic Acid, Diethylene Glycol Ester (for low MW variants); (Various trade names exist, e.g., Cithrol™, Lipopeg™ series)
EINECS	Contact for details

Quality Control

Our Polyethylene Glycol Diisostearate is manufactured under a strict quality management system. Each batch is tested to ensure it meets defined specifications for identity, purity, and performance. While specific grades may conform to relevant cosmetic or industrial standards, a comprehensive Certificate of Analysis (COA) detailing assay, acid value, saponification value, and hydroxyl value is available upon request to guarantee batch-to-batch consistency.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at room temperature (typically 15-25°C). Keep away from strong oxidizing agents. Under these conditions, the product is stable for an extended period.

Specification

Item	Specification
Appearance	Pale yellow to amber viscous liquid
Identification (IR)	Complies
Acid Value (mg KOH/g)	≤ 2.0
Saponification Value (mg KOH/g)	Contact for details
Hydroxyl Value (mg KOH/g)	Contact for details
Water Content	≤ 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.