Nonanoic acid

Nonanoic acid (CAS 112-05-0), also known as pelargonic acid, is a nine-carbon saturated fatty acid derived primarily from oleic acid oxidation. It functions as a pH regulator and emulsifier. This versatile chemical intermediate is used across lubricant, personal care, and food manufacturing applications. In lubricant and metalworking formulations, it serves as a precursor to nonanoate ester base fluids.

It is also utilized in corrosion inhibitors used in cutting oils and hydraulic fluids. Personal care manufacturers incorporate it into emulsified skin and hair products where its fatty acid profile supports texture. The material provides stability in finished formulations across various cosmetic lines. As a FEMA 2784-listed flavoring agent, it contributes to fruit and dairy flavor profiles in food and beverage products.

It also acts as a catalyst intermediate and pH buffer in specialty chemical synthesis. This is particularly useful where controlled acidity is required in complex esterification reactions during manufacturing. Nonanoic acid is supplied as a colorless to pale yellow liquid in bulk and intermediate packaging formats. Food-grade and technical-grade designations are the most common commercial specifications available.

Buyers sourcing for flavor applications should confirm FEMA compliance for their specific needs. Industrial buyers typically specify technical-grade material with defined acid value and purity thresholds for use.