the vmax for o-methylation [ determined for 3h- ( +/- ) -isoprenaline , 3h- ( +/- ) -adrenaline , 3h- ( +/- ) -noradrenaline and 3h-dopamine ] was rather similar for all four catecholamines .
C0022245
isoprenaline
C0007412
catecholamines