Medchemexpress, HY-13422A 5mg Zatebradine CAS:85175-67-3 Zatebradine (UL-FS-49 (free base)) is a potent inhibitor of hyperpolarization-activated cyclic nucleotide-gated (HCN) channels with an IC 50 value of 1.96 µM. Zatebradine blocks the slow inward current through human HCN1 , HCN2 , HCN3 and HCN4 channels , with IC 50 values of 1.83 µM, 2.21 µM, 1.90 µM and 1.88 µM, respectively [1] . 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.