2,4-Dichloro-5-pyrimidinecarboxaldehyde（Cat No.:R023585）is a heterocyclic aromatic compound featuring two chlorine atoms at the 2- and 4-positions of the pyrimidine ring and an aldehyde group at the 5-position. This molecule is a key intermediate in the synthesis of pharmaceuticals, agrochemicals, and biologically active heterocycles. The electron-withdrawing chlorines enhance reactivity at specific ring positions, allowing for selective substitution and cross-coupling reactions. Its aldehyde group serves as a versatile functional handle for condensation and nucleophilic addition, making it valuable in medicinal chemistry for developing kinase inhibitors, antivirals, and other therapeutic agents.