5-Azacytidine 5′-triphosphate

5-Azacytidine triphosphate (5-aza-CTP) acts as a cytidine analogue that specifically blocks the integration of CTP into RNA by DNA-dependent RNA polymerase, while sparing UTP incorporation. This inhibitor is utilized in epigenetics and RNA synthesis research for both in vitro transcriptional studies and investigations into nucleotide metabolism.