Teniposide;替尼泊苷;29767-20-2 Formula:C32H32O13S Teniposide is a semisynthetic derivative of podophyllotoxin with antineoplastic activity. Teniposide forms a ternary complex with the enzyme topoisomerase II and DNA, resulting in dose-dependent single- and double-stranded breaks in DNA, DNA: protein cross-links, inhibition of DNA strand religation, and cytotoxicity. This agent acts in the late S or early G phase of the cell cycle.