Used in the production of esters for fragrances and flavorings, nonoic acid finds application in the perfume industry due to its ability to contribute to floral and fruity scent profiles. It is also utilized in the synthesis of lubricants and surfactants, where its long hydrocarbon chain aids in improving solubility and stability. In agriculture, derivatives of nonoic acid serve as intermediates in the formulation of certain pesticides and plant growth regulators. Additionally, it plays a role in biochemical research as a component in studies involving fatty acid metabolism and enzyme inhibition.