Medchemexpress, HY-12954 5mg PTACH CAS:848354-66-5 PTACH (NCH-51) is a potent HDAC inhibitor with IC50s of 48 nM, 32 nM, and 41 nM for HDAC1, HDAC4, and HDAC6, respectively. PTACH exerts potent growth inhibition against various cancer cells (EC50s of 1.1-9.1 µM) . 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.