2'-Deoxycytidine-5'-monophosphate disodium salt (also named as dCMP•Na2) is mainly used as a substrate of uridine monophosphate (UMP)/ cytidine monophosphate (CMP) kinase to form dCDP which upon phosphorylation to dCTP supports DNA and RNA biosynthesis.

  Nucleoside monophosphate kinases: structure, mechanism, and substrate specificity . [1]

 Fluorescence Properties of DNA Nucleosides and Nucleotides: A Refined Steady-State and Femtosecond Investigation. [2]

 References:

[1] H.Yan, et al, Adv. Enzymol. Relat. Areas Mol. Biol., 1999, 73, pp 103-134.

[2] D.Onidas, et al, J. Phys. Chem. B, 2002, 166(43), pp 11367-11374.