For seasoned formulators and R&D scientists in the chemical and pharmaceutical industries, a granular understanding of ingredient properties is the foundation of successful product development. Isostearyl Alcohol, identified by its CAS number 27458-93-1, is a notable example of a specialty chemical with a unique profile that lends itself to a wide array of applications, particularly in the cosmetics and personal care sectors. As a dedicated supplier and manufacturer, we provide access to this high-quality ingredient, ensuring formulators have the necessary tools to innovate.

Isostearyl Alcohol is a fatty alcohol, chemically speaking. It's characterized as a mixture of branched-chain C18 aliphatic alcohols. The 'iso' prefix in its name refers to the branched structure, which distinguishes it from straight-chain fatty alcohols like stearyl alcohol. This branching is key to many of its desirable properties. For instance, while it has 18 carbon atoms, similar to stearyl alcohol, its branched nature allows it to remain a liquid at room temperature and even at lower temperatures (around 0°C), a property typically associated with shorter-chain or unsaturated alcohols. This characteristic is invaluable for formulators who need ingredients that maintain liquidity and flowability under various storage and usage conditions.

The chemical formula for Isostearyl Alcohol is C18H38O, with a molecular weight of approximately 270.49 g/mol. Its structure, often derived from the reduction of isostearic acid or isostearyl aldehyde, provides a non-polar character that makes it an effective emollient and lubricant. Emollients work by filling in the micro-cracks in the skin, creating a smooth surface and reducing water loss. Isostearyl Alcohol excels in this role, imparting a characteristically silky and non-greasy feel to formulations, a trait highly prized in high-end skincare and makeup products.

Furthermore, its chemical stability is notable. It exhibits excellent oxidative stability, meaning it is resistant to degradation from oxygen, which contributes to a longer product shelf life and prevents the development of off-odors or discoloration. This stability is particularly advantageous in products that undergo thermal processing during manufacturing.

The functional benefits derived from its chemical profile make Isostearyl Alcohol a versatile ingredient. It acts as a viscosity builder, enhancing the texture and body of lotions and creams. As a solubilizer, it can help to incorporate lipophilic (oil-loving) ingredients into aqueous (water-loving) formulations. Its low irritancy potential and excellent spreadability further cement its status as a preferred ingredient for sensitive skin formulations and products requiring even application.

When seeking to purchase Isostearyl Alcohol, understanding these chemical aspects allows formulators to make informed decisions. The purity and isomeric distribution of the fatty alcohol can influence its performance. Partnering with a chemical manufacturer that provides detailed technical data sheets (TDS) and ensures consistent product specifications is crucial. For businesses looking to buy Isostearyl Alcohol in bulk, discussing these technical requirements with a reputable supplier is a necessary step.

In summary, the unique branched structure and chemical stability of Isostearyl Alcohol (CAS 27458-93-1) provide a distinct set of properties that are highly beneficial for cosmetic and personal care formulators. Its emollient, conditioning, viscosity-modifying, and solubilizing capabilities, combined with its excellent stability, make it a valuable asset for creating innovative and consumer-pleasing products. Engaging with expert manufacturers and suppliers ensures access to this crucial specialty chemical.