Adefovir Dipivoxil 9-(2-(bis((pivaloyloxy)methoxy)phosphinyl)methoxy)ethyl)adenine Assay:99.5% Min Total Impurity: 0.5% max Mono-POM PMEA: 0.2% max Character:white or off-white powder CAS NO:142340-99-6 Adefovir Dipivoxil treatment for chronic hepatitis patients with cirrhosis