Description

Isostearyl Benzoate is a high-purity, synthetic ester widely valued for its exceptional emollient and solvent properties. This versatile compound is engineered to deliver superior skin feel, enhanced spreadability, and excellent stability in demanding formulations. It is a critical ingredient for manufacturers in the personal care, cosmetics, and specialty chemical industries seeking to develop premium, high-performance products.

Application

• Premium Skin Care & Color Cosmetics: Acts as a non-greasy, fast-spreading emollient and pigment wetting agent in foundations, lipsticks, sunscreens, and moisturizers.
• Hair Care Formulations: Used as a conditioning agent and gloss enhancer in hair serums, pomades, and styling products to reduce frizz and improve manageability.
• Specialty Chemical Solvent: Serves as an effective solvent for UV filters, fragrances, and active ingredients, improving their solubility and formulation homogeneity.
• Pharmaceutical Topicals: Employed as a penetration enhancer and carrier in ointments, creams, and transdermal delivery systems.
• Industrial Lubricants & Plasticizers: Functions as a synthetic base oil or plasticizer in specialty lubricants and polymer applications requiring low volatility and good compatibility.

Basic Information

Product Name	Isostearyl Benzoate
CAS No.	34364-24-4
Molecular Formula	C25H42O2
Molecular Weight	374.60 g/mol
Synonyms	Benzoic Acid, Isostearyl Ester; Isooctadecyl Benzoate; ISB; 16-Methylheptadecyl Benzoate; ISB (Cosmetic Ingredient); Isostearyl Benzoate (INCI); Jojoba Oil Substitute (in some applications); Kester® ISB (Trade Name)
EINECS	251-980-5

Quality Control

Our Isostearyl Benzoate is manufactured under a strict quality management system. Every batch undergoes comprehensive analytical testing to ensure it meets stringent specifications for purity, identity, and performance. Certificates of Analysis (COA) documenting key parameters are provided to guarantee consistent quality and supply reliability for your production needs.

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	Clear, colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Assay (GC)	≥ 98.0%
Acid Value	≤ 1.0 mg KOH/g
Saponification Value	140 - 155 mg KOH/g
Refractive Index (20°C)	1.478 - 1.488
Specific Gravity (20/20°C)	0.900 - 0.920

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