Structural Elucidation of Alkali Degradation Impurities of Favipiravir from the Oral Suspension: UPLC-TQ-ESI-MS/MS and NMR oleh Ravi Patel, Abhishek Dube, Ravisinh Solanki, Dignesh Khunt, Shalin Parikh, Vijayabhaskarreddy Junnuthula, Sathish Dyawanapelly