(R)-3-Nitrobiphenyline
-3-Nitrobiphenyline is a drug. As an α-adrenergic agonist, it activates α2 adrenergic receptors, which respond to the hormones adrenaline and noradrenaline. It is selective for the α subtype, as well as being a weak antagonist at the α and α subtypes. It has been used in scientific research to characterize the binding and functional properties of the α subtype.