The chemical Pidotimod has a designated molecular formula of C9H12N2O4S and a molecular weight of 244.265 g/mol. Synonyms may include: 3-((5-Oxo-2-pyrrolidinyl)carbonyl)-4-thiazolidinecarboxylic acid, PGT-1A, 3-Pyroglutamylthiazolidine-4-carboxylic acid (ChemID).