Description

Isostearyl Stearoyl Stearate is a high-purity, synthetic ester derived from stearic acid and isostearyl alcohol, functioning as an exceptional emollient and skin-conditioning agent. Its unique branched-chain structure provides superior oxidative stability and compatibility with a wide range of cosmetic and pharmaceutical ingredients. This makes it a critical raw material for formulators in the personal care and cosmetics industries seeking to enhance product texture, spreadability, and sensory profile.

Application

• Cosmetic & Personal Care Formulations: Acts as a primary emollient and texture enhancer in creams, lotions, sunscreens, and decorative cosmetics.
• Lipstick & Lip Care Products: Provides excellent gloss, stability, and a non-greasy feel in lipsticks, balms, and glosses.
• Hair Care Products: Used in conditioners, hair masks, and styling products to impart softness, shine, and manageability.
• Pharmaceutical Topicals: Serves as a non-irritating base and emollient in ointments, creams, and dermatological preparations.
• Color Cosmetics: Enhances pigment dispersion and improves application smoothness in foundations, eyeshadows, and blushes.
• Skin Care Serums & Moisturizers: Improves skin barrier function and delivers a luxurious, velvety after-feel.

Basic Information

Product Name	Isostearyl Stearoyl Stearate
CAS No.	134017-12-2
Molecular Formula	C54H106O4
Molecular Weight	819.4 g/mol
Synonyms	Isostearyl stearate, stearate; Octadecanoic acid, isooctadecyl ester; Isooctadecyl stearate; ISOSTEARYL STEARATE; Kemester 582; Prisorine ISST; Starfol IS-S; STEPAN ISOSTEARYL STEARATE; Tegosoft S
EINECS	Contact for details

Quality Control

Our Isostearyl Stearoyl Stearate is manufactured under strict quality management systems to ensure batch-to-batch consistency and purity. We provide comprehensive Certificates of Analysis (COA) for every shipment, detailing key parameters such as identity, assay, acid value, and saponification value. Our quality commitment aligns with GMP principles and relevant ISO standards to meet the stringent requirements of the cosmetic and pharmaceutical industries.

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	White to off-white waxy solid
Identification (IR)	Conforms
Assay (GC)	≥ 98.0%
Acid Value	≤ 1.0 mg KOH/g
Saponification Value	130 - 140 mg KOH/g
Iodine Value	≤ 2.0 g I2/100g
Melting Point	45 - 55 °C

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