MOA-stilbene, also known as 3-Methoxy-2-(2-styrylphenyl)propenic acid methyl ester, is a fluorescence inhibitor. MOA-stilbene is a new tool for investigation of the reactions of the chloroplast cytochrome bf complex. MOA-stilbene is known to be a specific inhibitor of the Qo site of mammalian cytochrome bc 1 complex.
