Lauryl Salicylate (Dodecyl Salicylate): Chemistry, Synthesis, Applications, and Research Perspectives - A Review

Abstract

Lauryl salicylate, a long-chain ester mainly derived from salicylic acid and lauryl alcohol, structurally consists of an aromatic salicylate ring connected to a long alkyl chain of 12 carbon atoms, making it Amphiphilic in nature. This property helps it to bridge between oil-based and water-based environments, making it extremely important for topical and transdermal drug delivery systems. It is mainly synthesize by Fischer esterification, but evolution in recent times has introduced more efficient catalytic approaches, which are giving good output with minimum environmental effect. The main physiochemical properties which are essential for its performance are solubility, partition coefficient and lipophilicity. Lauryl salicylate shows various biological activities such as anti- inflammatory, antioxidant and antimicrobial properties, which are a result of its enzymatic system and cellular interaction. The long 12-carbon chain increases its effectiveness by improving membrane permeability; however, challenges like insufficient clinical evidence and poor water solubility are left to be studied. Future studies are more concentrated on advanced drug delivery systems and Nano technology base formulation.