the order of potency of different agonists for displacement of bound [ 125i ] iodocyanopindolol was : isoprenaline greater than adrenaline greater than noradrenaline with respective ec50 ( concentration required for half maximal inhibition of binding ) of 7.9 x 10 ( -7 ) m , 1.5 x 10 ( -5 ) m and 7.9 x 10 ( -5 ) m .
C0014563
adrenaline
C0028351
noradrenaline