3-(4-Chlorophenoxy)propanoic acid is primarily used as an intermediate in the synthesis of various herbicides and plant growth regulators. Its role in agricultural chemistry is significant, as it helps in the development of compounds that control weed growth and enhance crop productivity. Additionally, it is utilized in research settings to study the effects of phenoxy acids on plant physiology and biochemistry. The compound's ability to influence plant hormone activity makes it valuable in experiments aimed at understanding and manipulating plant growth patterns.