Medchemexpress, HY-76612 5mg SB-408124 (Hydrochloride) CAS:1431697-90-3 SB-408124 Hydrochloride is a selective non-peptide orexin receptor 1 (OX1) receptor antagonist with Kis of 57 nM and 27 nM in whole cell and membrane, respectively. SB-408124 Hydrochloride exhibits 50-fold selectivity over OX2 receptor. Purity:>98% Medchemexpress has over 10000 novel life-science reagents, reference compounds, APIs and natural compounds for laboratory and scientific use. Other quantity can also be offered.