Medchemexpress, HY-100844 5mg GS-444217 CAS:1262041-49-5 GS-444217 is a potent, orally available and selective ATP-competitive inhibitor of apoptosis signal-regulating kinase 1 ( ASK1 ) with an IC 50 of 2.87 nM [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.