Medchemexpress, HY-114712 5mg SJ572403 CAS:19970-45-7 SJ572403 (SJ403) is an inhibitor of disordered protein p27(Kip1). p27(Kip1) is a regulator of the CDKs that control eukaryotic cell division [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.