Description

Polyglyceryl-3 Diisostearate is a non-ionic, lipophilic surfactant and emulsifier derived from polyglycerol and isostearic acid. This versatile compound is valued for its excellent skin feel, emollient properties, and ability to stabilize water-in-oil (W/O) emulsions. It is a critical ingredient for formulators in the personal care, cosmetics, and pharmaceutical industries seeking to create rich, stable, and non-greasy products.

Application

• Primary emulsifier and co-emulsifier in water-in-oil (W/O) creams, lotions, and sun care products.
• Key ingredient in decorative cosmetics such as foundations, lipsticks, and mascaras for pigment dispersion and texture enhancement.
• Used in hair care formulations, including conditioners and styling products, to impart softness and manageability.
• Acts as a solubilizer and carrier for active pharmaceutical ingredients (APIs) in topical ointments and creams.
• Functions as a lubricant and anti-static agent in industrial applications and specialty coatings.
• Employed in food-grade lubricants and release agents where non-toxic, biodegradable properties are required.

Basic Information

Product Name	Polyglyceryl-3 Diisostearate
CAS No.	66082-42-6
Molecular Formula	Typically C57H110O8 (varies with isomer distribution)
Molecular Weight	~ 899.5 g/mol (average)
Synonyms	Polyglycerol-3 Diisostearate; Polyglyceryl-3 Diisooctadecanoate; Diglyceryl Diisostearate; PG3DIS; Polyglycerin-3 Diisostearate; Polyoxyglycerol Diisostearate; Isostearic Acid, Diester with Polyglycerin-3
EINECS	266-124-4

Quality Control

Our Polyglyceryl-3 Diisostearate is manufactured under a cGMP-compliant quality management system. Each batch is tested to ensure it meets stringent specifications for identity, purity, and performance. We provide comprehensive Certificates of Analysis (COA) with key parameters including acid value, saponification value, hydroxyl value, and heavy metal content. Our quality commitment supports compliance with relevant guidelines for cosmetics (ISO 22716) and other applicable standards.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at room temperature (15-25°C). Avoid prolonged exposure to high temperatures and humidity to maintain product integrity.

Specification

Item	Specification
Appearance	Pale yellow to amber viscous liquid
Acid Value (mg KOH/g)	≤ 3.0
Saponification Value (mg KOH/g)	120 - 140
Hydroxyl Value (mg KOH/g)	60 - 90
Water Content (%)	≤ 0.5
Heavy Metals (as Pb, ppm)	≤ 10
Identification (IR)	Conforms

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