Used as an intermediate in the synthesis of pharmaceuticals, particularly in the development of antihypertensive and cardiovascular drugs. It serves as a building block for introducing the pyrimidine ring system into more complex molecules. Commonly employed in the preparation of calcium channel blockers and other bioactive compounds. Also utilized in agrochemical synthesis for creating herbicides and plant growth regulators. Its reactivity allows for easy functionalization, making it valuable in medicinal chemistry research and development.