Fenoterol EP Impurity B with CAS No: 699525-61-6 is an impurity standard of Fenoterol. Fenoterol is a medication that belongs to a class of drugs known as beta-2 adrenergic agonists.Fenoterol is primarily used as a bronchodilator. Fenoterol is helps to relax the muscles of the airways in the lungs, leading to improved airflow. Fenoterol is often prescribed to treat conditions such as asthma and chronic obstructive pulmonary disease (COPD). Buy high quality Fenoterol EP Impurity B from Molsyns Research. Molsyns Research is one of the leading manufacturer and exporter of Fenoterol EP Impurity B