Isononanoic acid

Isononanoic acid (CAS 26896-18-4), also known as isopelargonic acid, is a branched-chain C9 fatty acid used as a building block and functional ingredient in polymer, lubricant and personal care manufacturing.

Where is Isononanoic acid used?

• Plastics and polymer processing: reacts with alcohols to produce plasticizer esters for PVC and other flexible polymer formulations
• Metalworking and lubricants: esters as base fluids and additive components in synthetic lubricants
• Personal care: emollient ester precursor and emulsifier component in creams and serums
• Coatings and inks: intermediate in the production of metal soaps and driers
• Its branched structure drives performance in ester synthesis.

Good to know: Low-temperature performance and oxidative stability are key purchasing criteria for lubricant applications.

Commercial specifications

• Technical grade, purity typically 99% or above
• Bulk supply in drums and IBC containers; tanker quantities for large-volume buyers