Description

Isostearyl Octanoate is a high-purity, synthetic ester renowned for its exceptional emolliency and skin feel. This versatile ingredient serves as a superior, non-greasy emollient and solvent, offering excellent spreadability and compatibility with a wide range of cosmetic oils and actives. It is a critical raw material for formulators in the personal care and cosmetics industries seeking to enhance product texture, stability, and sensory appeal. Its unique branched-chain structure provides outstanding oxidative stability and low viscosity.

Application

• As a premium emollient in facial creams, lotions, and serums for a smooth, non-greasy afterfeel.
• As a solubilizer and carrier for active ingredients and UV filters in sun care and treatment products.
• In color cosmetics such as lipsticks, foundations, and mascaras to improve pigment dispersion and application smoothness.
• As a key component in hair care formulations, including conditioners and serums, to impart shine and reduce frizz without heaviness.
• In suncare products to enhance water resistance and improve the spreadability of high-SPF formulas.
• As a plasticizer and lubricant in specialty industrial applications requiring low-temperature flexibility and compatibility with polymers.
• In pharmaceutical topical preparations as a skin-friendly base or penetration enhancer.

Basic Information

Product Name	Isostearyl Octanoate
CAS No.	72576-78-4
Molecular Formula	C₂₆H₅₂O₂
Molecular Weight	396.7 g/mol
Synonyms	Isooctadecyl Octanoate; Octanoic Acid, Isooctadecyl Ester; Isostearyl Caprylate; 2-Octyl Dodecyl Octanoate; ISOC; Prisorine ISOC; Starfol ISOC; Kemester 2050
EINECS	276-734-2

Quality Control

Our Isostearyl Octanoate is manufactured under a cGMP compliant quality management system, ensuring batch-to-batch consistency and traceability. Each lot undergoes rigorous analytical testing, including identity confirmation, purity assay, and critical physical property verification, to meet stringent cosmetic and pharmaceutical-grade specifications. A comprehensive Certificate of Analysis (COA) detailing all test results is provided with every shipment.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at controlled room temperature (15-25°C). Keep away from strong oxidizing agents and heat sources to maintain product integrity.

Specification

Item	Specification
Appearance	Clear, colorless to pale yellow liquid
Identification (IR)	Conforms
Assay (GC)	≥ 98.0%
Acid Value	≤ 1.0 mg KOH/g
Saponification Value	140 - 150 mg KOH/g
Iodine Value	≤ 1.0 g I₂/100g
Refractive Index (20°C)	1.448 - 1.452
Specific Gravity (20/20°C)	0.850 - 0.860

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