pharmacological experiments with isolated rat aorta and radioligand binding studies in rat cerebral membranes were performed with the p-isothiocyanato ( p-ncs ) and p-methylisothiocyanato ( p-ch2-ncs ) derivatives of clonidine in order to assess their selectivity for alpha 1- and alpha 2-adrenoceptors , and to characterize their ability to alkylate alpha-adrenoceptors .
C0001639
alpha 2-adrenoceptors
C0034784
alpha-adrenoceptors