antifungal without defined classification azoxystrobin ARO:3009185 Azoxystrobin (brand name Amistar, Syngenta) is widely used as a very broad spectrum fungicide in agriculture, particularly in wheat farming. It is an inhibitor of mitochondrial respiration by blocking electron transfer between cytochromes b and c1, and binds very tightly to the Qo site of Complex III of the mitochondrial electron transport chain, thereby ultimately preventing the generation of ATP. CAS:131860-33-8 antibiotic_resistance PubChem:3034285 ChEBI:40909 ChEMBL:CHEMBL230001