Entacapone EP Impurity D with CAS No: 857629-79-9 is an impurity standard of Entacapone. Entacapone is a medication used in combination with other drugs to treat Parkinsons disease. Entacapone is specifically used to enhance the effects of levodopa/carbidopa therapy and improve motor symptoms. Buy high quality Entacapone EP Impurity D from Molsyns Research. Molsyns Research is one of the leading manufacturer and exporter of Entacapone EP Impurity D