7-Methyloctanoic acid

7-Methyloctanoic acid (CAS 693-19-6), also known commercially as isopelargonic acid, is a branched-chain fatty acid used in industrial formulation chemistry.

Where is 7-Methyloctanoic acid used?

• Lubricants and metalworking fluids: corrosion inhibitor and lubricity additive for oxidative stability at high temperatures
• Personal care: ester derivatives such as isononyl esters for lightweight emolliency in skin and hair products
• Plastics and polymer processing: precursor to plasticizers and metal soap stabilizers for flexibility in PVC
• Coatings and adhesives: metallic salt forms as driers or adhesion promoters in solvent-borne systems
• Its branched structure resists oxidation and crystallization, making it a building block for esters, metallic soaps, and specialty intermediates.

Commercial specifications

• Technical grade, purity typically 98% or higher
• Packaging from drums to IBC containers, bulk availability depending on supplier