The chemical Pyrazinamide has a designated molecular formula of C5H5N3O and a molecular weight of 123.115 g/mol. Synonyms may include: D-50, 5-25-04-00178 (Beilstein Handbook Reference), D-50 (VAN), Aldinamid, Aldinamide, BRN 0112306, 2-Carbamylpyrazine, CCRIS 545, EINECS 202-717-6, Eprazin, Farmizina, HSDB 3576 (ChemID).