Isononanoic acid (INA) is A branched-chain fatty acid, with the chemical formula: C9H18O2 It is typically a colorless liquid with excellent lubricating, emulsifying, dispersing, and dissolving properties, and can be used in the production of ester plasticizers, lubricants, coatings, adhesives, and inks. Its derivatives, isonononates (such as isononyl isononanoate), are widely used in cosmetics to provide a silky and refreshing feel, commonly known as "synthetic silk oil," and can disperse pigments and improve the low-temperature stability of silicone oils. 

Basic properties

· Appearance : Colorless and transparent liquid.

· Solubility : Soluble in a variety of organic solvents such as ethanol, ether, and benzene; slightly soluble in water.

· Odor : It has a distinctive odor and is flammable.

· Acidity : It is acidic and can react with bases. 

Main uses

· Ester products : Production of plasticizers (such as PVC plasticizers), synthetic lubricants, and inks.

· Cosmetics : Isononyl isononanoate, as a moisturizer, provides a silky, refreshing feel, increases product spreadability, and helps disperse pigments.

· Coatings and adhesives : used as raw materials to improve product performance.

· Additives : Stabilizers and coupling agents for silicone oil, solving the problem of low-temperature precipitation.