Description

Glycerol Monoisostearate CAS NO 66085-00-5 is a non-ionic, lipophilic surfactant and emulsifier derived from glycerol and isostearic acid. This versatile chemical intermediate is valued for its excellent stability, emollient properties, and ability to modify viscosity and texture in formulations. It serves as a critical functional ingredient for manufacturers in the personal care, cosmetics, and specialty chemical industries seeking to enhance product performance and sensory appeal.

Application

• Cosmetics & Personal Care: Acts as a primary emulsifier, opacifier, and pearlescent agent in creams, lotions, and hair conditioners.
• Skin Care Formulations: Provides rich, non-greasy emolliency and stabilizes oil-in-water (O/W) emulsions in moisturizers and sunscreens.
• Makeup Products: Used to create smooth texture and improve pigment dispersion in foundations, lipsticks, and mascaras.
• Industrial Lubricants & Release Agents: Functions as a lubricant and mold release agent in plastic and rubber processing.
• Textile & Fiber Industry: Employed as a softening agent and spin finish for synthetic fibers.
• Food-Grade Applications (where compliant): Can be used as an emulsifier and stabilizer in certain food additive formulations.

Basic Information

Product Name	Glycerol Monoisostearate
CAS No.	66085-00-5
Molecular Formula	C21H42O4
Molecular Weight	358.56 g/mol
Synonyms	Glyceryl Monoisostearate; Monoisostearin; 1-Monoisostearoylglycerol; 2,3-Dihydroxypropyl isooctadecanoate; Isostearic Acid Monoglyceride; Glycerin Monoisostearate; GMIS; (Isostearoyl)glycerol
EINECS	266-124-4

Quality Control

Our Glycerol Monoisostearate is manufactured under a strict quality management system. Each batch is tested to ensure it meets consistent purity and performance specifications. We provide comprehensive Certificates of Analysis (COA) with key parameters including assay, acid value, hydroxyl value, and iodine value. Our quality commitment supports compliance with relevant standards for industrial and cosmetic applications.

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). Keep away from strong oxidizing agents and excessive heat to maintain product integrity.

Specification

Item	Specification
Appearance	White to off-white waxy solid or flakes
Identification (IR)	Conforms
Assay (Monoester Content)	Min. 90.0%
Acid Value	Max. 3.0 mg KOH/g
Hydroxyl Value	Contact for details
Iodine Value	Contact for details
Melting Point	Approx. 55 - 65 °C
Heavy Metals (as Pb)	Max. 10 ppm

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