Etoposide phosphate (Standard) is the analytical standard of Etoposide phosphate. This product is intended for research and analytical applications. Etoposide phosphate (BMY-40481) is a potent anti-cancer chemotherapy agent and a selective topoisomerase II inhibitor to prevent re-ligation of DNA strands. Etoposide phosphate is the phosphate ester proagent of etoposide and is considered as active equivalent to Etoposide. Etoposide phosphate induces cell cycle arrest, apoptosis, and autophagy.