L-765314 is a drug which acts as a potent and selective antagonist for the Alpha-1 adrenergic receptor subtype α1B. It has mainly been used to investigate the role of α1B receptors in the regulation of blood pressure.

98%

Store at -20℃ for one year（Powder）；Store at 2-4℃ for two weeks；Store at -20℃ for six months after dissolution.

DMSO:50 mg/mL (95.68 mM)

α1B-adrenergic receptor:2.0 nM (ki) human, α1B-adrenergic receptor:5.4 nM(ki) rat

L-765314 shows weak potency for inhibiting the pressor response to either phenylephrine or A-61603 (AD25>3 mg/kg for each).?On the basis of the inhibition of pressor responses to the R1a subtype selective agonist A-61603, L-765314 appears to be selective versus the R1a receptor up to a dose of 0.3 mg/kg.?The results of hypotensive potency in rats show that both L-765314 and terazosin tend to decrease heart rate (about 25 bpm at 1 mg/kg iv)[1]