Description

Isostearic Acid CAS NO 2724-58-5 is a branched-chain, liquid fatty acid derived from oleic acid, offering superior oxidative stability and low-temperature fluidity compared to its linear counterparts. This unique molecular structure makes it a highly versatile and valuable intermediate for demanding industrial applications. It is essential for formulators and manufacturers in the personal care, lubricant, plasticizer, and coatings industries seeking to enhance product performance and shelf life.

Application

• Personal Care & Cosmetics: A key emollient and conditioning agent in creams, lotions, lipsticks, and hair care products, providing a non-greasy feel and excellent skin compatibility.
• Lubricants & Greases: Used to synthesize esters that serve as high-performance base stocks and additives, offering excellent low-temperature properties and thermal stability.
• Polymer & Resin Modification: Acts as a plasticizer and processing aid for synthetic resins and rubber, improving flexibility and low-temperature impact resistance.
• Metalworking Fluids: Employed in the formulation of corrosion inhibitors and lubricity additives for cutting and drawing oils.
• Coatings & Inks: Imparts improved flow, leveling, and adhesion properties in alkyd resins and other coating systems.
• Textile Auxiliaries: Functions as a softening agent and lubricant in fiber processing and finishing.

Basic Information

Product Name	Isostearic Acid
CAS No.	2724-58-5
Molecular Formula	C₁₈H₃₆O₂
Molecular Weight	284.48 g/mol
Synonyms	16-Methylheptadecanoic Acid; Isooctadecanoic Acid; 16-Methyl margaric acid; Branched-chain stearic acid; Iso-C18 acid; (16-Methylheptadecyl)carboxylic acid
EINECS	220-336-3

Quality Control

Our Isostearic Acid is produced under a stringent quality management system. Each batch undergoes comprehensive analytical testing, including assay, acid value, iodine value, and color determination, to ensure it meets precise specifications for purity and performance. Certificates of Analysis (COA) are provided and available upon request to guarantee traceability and compliance with your quality standards.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area away from heat sources and incompatible materials. Due to its nature of being easily oxidized, it is recommended to store under an inert atmosphere (e.g., nitrogen) for long-term preservation. Recommended storage temperature: 15-25°C.

Specification

Item	Specification
Appearance	Clear, pale yellow liquid
Identification (IR)	Conforms
Assay (GC)	≥ 95.0%
Acid Value	190 - 205 mg KOH/g
Iodine Value	≤ 10 g I₂/100g
Saponification Value	195 - 210 mg KOH/g
Color (Gardner)	≤ 3
Water Content (KF)	≤ 0.2%

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