NHC-diphosphate, a phosphorylated intracellular metabolite of beta-d-N4-Hydroxycytidine (NHC) in its diphosphate form[1], serves as a potent antiviral agent. As a pyrimidine ribonucleoside, NHC effectively counters the replication of Venezuelan equine encephalitis virus (VEEV), Chikungunya virus (CHIKV), and hepatitis C virus (HCV)[1].
