Oxychloroaphine (1-phenazinecarboxamide) is a simple phenazine produced by several species of Pseudomonas. Oxychloroaphine is a weakly active antifungal metabolite that plays a role in the biocontrol of plant diseases by several Pseudomonas strains. Oxychloroaphine and related phenazines are important dereplication standards in discovery research to eliminate leads due to high amounts of weakly potent actives.