Used as a research compound in plant physiology studies, particularly in understanding auxin signaling and metabolism. It serves as a structural analog of indole-3-acetic acid (IAA), allowing scientists to probe the specificity of auxin receptors and degradation pathways. Its chlorinated structure makes it more resistant to oxidation, enabling longer-lasting effects in experimental systems. Commonly applied in studies on plant growth regulation, root development, and hormone crosstalk in model plants like Arabidopsis.