Widely used in pharmaceutical synthesis, particularly as an intermediate in the production of serotonin receptor modulators and other neuroactive compounds. It serves as a key building block in the development of antidepressants, antipsychotics, and anti-migraine drugs due to its structural similarity to indole-based neurotransmitters. Also employed in the synthesis of kinase inhibitors for cancer therapy. Its nitrile and amine functional groups allow for diverse chemical modifications, making it valuable in medicinal chemistry and drug discovery research. Additionally, it is used in the preparation of fluorescent dyes and optoelectronic materials owing to its conjugated indole framework.