Medchemexpress, HY-107361 10mg JAK1-IN-3 CAS:2091134-68-6 JAK1-IN-3 is a selective JAK1 inhibitor, with an IC50 of 73 nM, weakly inhibits JAK2, and shows little inhibition on JAK3 (IC50, >14.7, >30 μM, respectively). 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.