methisoprinol and its Impurities

Methisoprinol is a combination of inosine, acetamidobenzoic acid, and dimethylaminoisopropanol used as an antiviral drug. It is most commonly used to treat the rare measles complication subacute sclerosing panencephalitis in conjunction with intrathecal interferon therapy. Reference standards of Methisoprinol API,and its pharmacopeial, non pharmacopeial impurities, and stable isotopes are listed below.