Ethyl 1,2,4-triazine-3-carboxylate is primarily utilized in the field of organic synthesis as a versatile intermediate for the development of various heterocyclic compounds. Its structure allows it to participate in reactions that form complex molecules, which are often explored for pharmaceutical applications. Specifically, it serves as a key building block in the synthesis of potential drug candidates, particularly those targeting diseases like cancer, due to its ability to interact with biological targets. Additionally, it is used in agricultural chemistry for the creation of novel pesticides and herbicides, leveraging its reactivity to develop compounds that can effectively control pests and weeds. Its role in material science is also notable, where it contributes to the design of advanced materials with specific electronic or photonic properties.