3'-dCMP·Na is widely used in molecular biology and biochemistry research as a key component in the synthesis of DNA and RNA. It serves as a building block for the enzymatic construction of oligonucleotides, which are essential for various applications such as PCR, sequencing, and gene synthesis. Additionally, it is utilized in studies involving nucleotide metabolism and enzyme kinetics, helping researchers understand cellular processes and mechanisms. Its role in the development of diagnostic tools and therapeutic agents further highlights its importance in biomedical research.