Medchemexpress, HY-13629 500mg Etoposide VP-16;VP-16-213 CAS:33419-42-0 Formula:C29H32O13 Purity:98% Etoposide is a topoisomerase II inhibitor, inhibiting DNA synthesis. 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.