Used primarily as a reference standard or impurity control for Tipiracil in the pharmaceutical industry, this compound plays a critical role in the quality control of anticancer drug formulations, particularly TAS-102 containing trifluridine and tipiracil. It helps in validating analytical methods such as HPLC and LC-MS to ensure the purity, stability, and consistency of final drug products. Due to its structural similarity to active pharmaceutical ingredients like tipiracil, it is also useful in studying degradation pathways and developing more stable formulations.