Description

Isostearyl Stearoyl Stearate is a high-purity, synthetic ester derived from isostearyl alcohol and stearic acid. This compound serves as a highly effective and versatile emollient, lubricant, and viscosity modifier, prized for its excellent skin feel and stability. It is a critical ingredient for formulators in the personal care, cosmetics, and pharmaceutical industries seeking to create premium lotions, creams, ointments, and color cosmetics.

Application

• Primary Emollient in skin care creams, lotions, and sun care products for a non-greasy, velvety afterfeel.
• Pigment Wetting & Dispersing Agent in color cosmetics, including lipsticks, foundations, and eyeshadows.
• Viscosity Modifier and Stabilizer for oil-in-water and water-in-oil emulsion systems.
• Lubricant and Gloss Enhancer in hair care conditioners and styling products.
• Pharmaceutical Ointment Base for topical drug delivery systems, enhancing spreadability and skin absorption.
• Plasticizer and Processing Aid in specialty polymer and resin formulations.

Basic Information

Product Name	Isostearyl Stearoyl Stearate
CAS No.	93385-12-7
Molecular Formula	C54H108O4
Molecular Weight	821.4 g/mol
Synonyms	Isostearyl stearate; Octadecanoic acid, isooctadecyl ester; Isooctadecyl stearate; ISOSTEARYL STEARATE; Kemester 5820; Prisorine 2021; Starfol IS-S; Salacos 918
EINECS	Contact for details

Quality Control

Our Isostearyl Stearoyl Stearate is manufactured under strict quality management systems. Each batch is tested against rigorous in-house specifications to ensure consistency, purity, and performance. A comprehensive Certificate of Analysis (COA) documenting identity, assay, and key physical parameters is provided with every shipment.

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)	≥ 98.0%
Acid Value	≤ 2.0 mg KOH/g
Iodine Value	≤ 2.0 g I₂/100g
Saponification Value	125 - 140 mg KOH/g
Melting Point	45 - 55 °C

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