The chemical Sulfapyridine has a designated molecular formula of C11H11N3O2S and a molecular weight of 249.288 g/mol. Synonyms may include: A-499, M+B 693, M + B 693, Adiplon, AI3-01049, 2-(p-Aminobenzenesulphonamido)pyridine, Coccoclase, Dagenan, EINECS 205-642-7, Eubasin, Eubasinum, Haptocil (ChemID).