label: catechol O-methyltransferase activity
label_lc: catechol o-methyltransferase activity
description: "Catalysis of the reaction: a catechol + S-adenosyl-L-methionine = a guaiacol + H+ + S-adenosyl-L-homocysteine. Acts on catechols and on catecholamines such as adrenaline or noradrenaline."