Used in the development of pharmaceuticals, particularly in the synthesis of deuterated compounds for drug research and development. It serves as a key intermediate in creating labeled analogs of active pharmaceutical ingredients, aiding in metabolic and pharmacokinetic studies. The deuterium labeling helps in tracing and understanding drug behavior in biological systems, enhancing the precision of drug efficacy and safety evaluations. Additionally, it is utilized in organic synthesis for constructing complex quinoxaline derivatives, which are valuable in medicinal chemistry for their diverse biological activities.