Felodipine Impurity 1 with CAS No: 74073-22-6 is an impurity standard of Felodipine. Felodipine is a medication classified as a calcium channel blocker.Felodipine is commonly prescribed to treat high blood pressure (hypertension) and certain types of chest pain (angina). Calcium channel blockers work by relaxing and widening the blood vessels which is reduces the workload on the heart and improves blood flow. Buy high quality Felodipine Impurity 1 from Molsyns Research. Molsyns Research is one of the leading manufacturer and exporter of Felodipine Impurity 1