BMS 182874 hydrochloride is a nonpeptide endothelin (El) receptor antagonist.

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

DMSO:100mM

BMS-l 82874 inhibited ET-l -stimulated inositol phosphate accumulation (KB 75 nM) and calcium mobilization (Ki = 140 nM) without suppressing the maximal responses in VSM-A10 cells. BMS-182874 competitively inhibited the binding of [125I]ET-1 to ETA receptors in rat vascular smooth muscle A10 (VSM-A10) cell membranes (Ki = 61 nM) and in CHO cells stably expressing the human ETA receptor (Ki = 48 nM), but was a weak inhibitor at ETB receptors (Ki > 50 μM) and non-ET receptors.

BMS-182874 blunted the pressor response to exogenous ET-l when administered either orally (ED50 = 30 μmol/kg) or intravenously (ED50 = 24 μmol/kg) to conscious, normotensive rats.