7-Phenylheptanoic acid is utilized in organic synthesis as a building block for the creation of more complex molecules. It serves as an intermediate in the production of pharmaceuticals, particularly in the development of compounds with potential anti-inflammatory and analgesic properties. Additionally, it is used in the synthesis of liquid crystals, which are essential components in display technologies such as LCDs. The compound also finds application in the preparation of surfactants and lubricants due to its hydrophobic and hydrophilic balance, making it suitable for industrial formulations. In research, it is employed as a model substrate to study enzymatic reactions and metabolic pathways, aiding in the understanding of biochemical processes.