Macitentan Impurity 23 with CAS No: 149506-35-4 is an impurity standard of Macitentan. Macitentan is a medication used in the treatment of pulmonary arterial hypertension (PAH), a rare and serious condition characterized by high blood pressure in the arteries of the lungs. Macitentan is classified as an endothelin receptor antagonist. Macitentan is typically available in oral tablet form Buy high quality Macitentan Impurity 23 from Molsyns Research. Molsyns Research is one of the leading manufacturer and exporter of Macitentan Impurity 23