racemic mixtures of noradrenaline , adrenaline , isoprenaline , n-t-butylnor-adrenaline and their corresponding derivatives containing an oxymethylene ( om ) link between the phenyl ring and ethanolamine side-chain have been tested for their effects on beta-adrenoceptors in isolated guinea-pig atrial and tracheal preparations .
C0028351
noradrenaline
C0014563
adrenaline