Guaifenesin EP Impurity A with CAS No: 90-05-1 is an impurity standard of Guaifenesin. Guaifenesin is an expectorant commonly used in over-the-counter cough and cold medications. Its application involves promoting the clearance of mucus from the respiratory tract. Chemically, guaifenesin is an aromatic compound. By increasing the volume and reducing the viscosity of respiratory secretions, guaifenesin facilitates their expulsion through coughing. This makes it a helpful component in relieving symptoms associated with respiratory conditions such as the common cold, bronchitis, and other respiratory infections. Guaifenesin is often included in combination with other medications to provide comprehensive relief from cough and congestion. Buy high quality Guaifenesin EP Impurity A from Molsyns Research. Molsyns Research is one of the leading manufacturer and exporter of Guaifenesin EP Impurity A