ethionamide and its Impurities
An antibiotic drug which is used for the treatment of multi-drug-resistant tuberculosis. Ethionamide is a prodrug which is activated by enzyme EthA and it is structurally similar to methimazole. It is a nicotinic acid derivative. Reference standards of Ethionamide API, and its pharmacopeial, non pharmacopeial impurities, and stable isotopes are listed below.