SMILES: C1=CN=C(C=N1)C(=O)O
Description: The molecule is the parent compound of the class of pyrazinecarboxylic acids, that is pyrazine bearing a single carboxy substituent. The active metabolite of the antitubercular drug pyrazinamide. It has a role as a drug metabolite and an antitubercular agent. It is a conjugate acid of a pyrazine-2-carboxylate.