Lopinavir EP Impurity E with CAS No: 192725-49-8 is an impurity standard of Lopinavir. Lopinavir is an antiretroviral medication used in the treatment of HIV (human immunodeficiency virus) infection.Lopinavir is often used in combination with another antiretroviral drug called ritonavir to enhance its effectiveness. Buy high quality Lopinavir EP Impurity E from Molsyns Research. Molsyns Research is one of the leading manufacturer and exporter of Lopinavir EP Impurity E