the constants characterising this inhibition , the bimolecular rate ka ( 51.8 m-1 min-1 for epinephrine and 15.9 m-1 min-1 for norepinephrine ) and the enzyme inhibitor dissociation constant ( 8.52 mm for epinephrine and 12.2 mm norepinephrine ) were determined .
C0014563
epinephrine
C0028351
norepinephrine