Methyl isostearate

Methyl isostearate (CAS 68517-10-2) is the methyl ester of isostearic acid, a branched-chain C18 fatty acid derivative. It functions as a lubricant, emollient, and plasticizer across personal care, industrial lubricant, and polymer applications.

In personal care formulations, it acts as a skin-conditioning emollient and spreading agent in creams, lotions, and color cosmetics. This chemical contributes a dry, non-greasy skin feel to various cosmetic products.

Industrial lubricant formulators incorporate it into metalworking fluids and specialty lubricants. Its unique branched structure resists crystallization at low temperatures, ensuring performance in demanding environments.

In coatings and adhesive systems, it functions as a plasticizer and processing aid. These properties help in improving flexibility and substrate adhesion for high-performance industrial coating applications.

Polymer processors use it as an internal lubricant and softener in PVC and other thermoplastic compounds. This helps to aid melt flow during extrusion and improves the overall processing efficiency.

Methyl isostearate is supplied as a clear to pale yellow liquid for various manufacturing needs. It is available in technical and cosmetic grades to meet specific industry purity requirements.

Cosmetic-grade material typically meets purity specifications relevant to personal care applications. Bulk supply is standard in drums and IBC containers for large-scale industrial and commercial operations.

Cosmetic-grade lots are commonly accompanied by relevant safety and compliance documentation. This ensures that all regulatory standards are met for global distribution and formulation safety.