2-Ethylhexyl Stearate (EHS) CAS 22047-49-0

2-Ethylhexyl Stearate – Light Emollient Ester for Smooth and Non-Greasy Cosmetic Formulations

Basic Information

• CAS Number: 22047-49-0

• Molecular Formula: C₂₆H₅₂O₂

• Molecular Weight: 396.69 g/mol

• Synonyms: Ethylhexyl stearate, Isooctyl stearate (common trade name)

• Appearance: Clear, colorless to slightly yellowish oily liquid

• Odor: Faint, neutral

• Density: ~0.85 g/cm³ (at 20°C)

• Boiling Point: ~425°C (at atmospheric pressure)

• Flash Point: ~210°C

• Solubility: Insoluble in water; miscible with organic solvents and oils

• Storage: Store in tightly sealed containers at 5–30°C, protected from light and moisture

Overview
2-Ethylhexyl stearate (also known as isooctyl stearate) is the ester of stearic acid and 2-ethylhexanol. It is a lightweight, non-greasy emollient widely used in cosmetic and personal care formulations. Its excellent slip and spreadability properties make it a preferred ingredient in creams, lotions, serums, and makeup products, providing a smooth, silky feel without leaving an oily residue. Its low comedogenic potential makes it suitable for a wide range of skin types, including sensitive and acne-prone skin.

Applications

• Skin care: Creams, lotions, moisturizers, and serums – provides smoothness and softness.

• Sun care: Enhances the distribution of UV filters and improves water resistance.

• Color cosmetics: Foundations, powders, lipsticks, and blushes – improves pigment dispersion and application.

• Massage oils: Provides good slip and spreadability.

• Hair care: Used in conditioners and styling products for a silky feel.

• Pharmaceuticals: As a base and penetration enhancer in topical formulations.

Key Benefits

• Light, non-oily skin feel.

• Excellent slip and spreadability.

• Non-comedogenic – safe for sensitive and acne-prone skin.

• Enhances active ingredient absorption.

• Compatible with a wide range of cosmetic ingredients.

• Provides a smooth, silky finish.

• Cost-effective and widely used.

Safety and Handling

• Generally regarded as safe for cosmetic use at typical concentrations (1–10%).

• Low irritation potential; rare allergic reactions.

• Avoid contact with strong oxidizers and acids.

• Store in a cool, dry place, away from direct sunlight.

• Use appropriate personal protective equipment (gloves, safety goggles) when handling.

Quality Assurance
Each batch is tested for purity, acid value, saponification value, and color to ensure consistent quality.