l-phenylephrine

L-Phenylephrine is an alpha-adrenergic agonist used as a mydriatic, nasal decongestant, and cardiotonic agent.

Phenylephrine ((R)-(-)-Phenylephrine) is a selective α1-adrenoceptor agonist ( pKi: 5.86, 4.87 and 4.70 for α1D, α1B, and α1A receptors respectively).

Phenylephrine hydrochloride (NCI-c55641) is a selective agonist of the α1-adrenergic receptor.

DHP-218 is a calcium channel antagonist. DHP-218 inhibits Calcium-induced contraction of the rat aorta in high K+ solution with the pA2 value of 9.11. The IC50 value for the inhibitory effects of DHP-218 in high K+-induced and phenylephrine-induced contra

l-Stephanine is a potent and highly selective alpha 1 adrenoceptor blocker, inhibits anococcygeus muscle contraction induced by phenylephrine with pA2 values of 6.76. Stephanine shows significant antiplasmodial activities with IC(50) ranged from 1.2 uM to 52.3 uM. Stephanine and crebanine have high inhibitory activity against gram-positive animal pathogenic bacteria, with MIC values of 0.078-0.312g/l, but low inhibitory activity against gram-negative animal pathogenic bacteria, they also inhibit hyphal growth of the plant pathogens Cercospora kaki.

Harmalol hydrochloride (Harmidol hydrochloride) is a β-carboline alkaloid that can be extracted from the seeds of Peganum harmala L. Harmalol hydrochloride is the major metabolite of Harmaline and significantly inhibits dioxin-mediated induction of CYP1A1 at both transcriptional and post-translational levels. Harmalol hydrochloride showed vasorelaxant activity in isolated rat thoracic aortic preparations preconstricted with phenylephrine or KCl. Harmalol hydrochloride has antioxidant activity.