the relative order of potency of the catecholamines in displacement experiments , isoprenaline greater than adrenaline greater than noradrenaline and curve-fitting analysis of the competition binding isotherms using subtype selective beta-adrenergic antagonists , suggests the presence of an homogeneous population of beta 2-adrenoceptors .
C0014563
adrenaline
C0028351
noradrenaline