CAS: 98-79-3 Molecular Formula: C5H7NO3 Molecular Weight (g/mol): 129.12 MDL Number: MFCD00005272 InChI Key: ODHCTXKNWHHXJC-UHFFFAOYNA-N Synonym: l-pyroglutamic acid,pyroglutamic acid,pidolic acid,5-oxo-l-proline,h-pyr-oh,5-oxoproline,s-5-oxopyrrolidine-2-carboxylic acid,2s-5-oxopyrrolidine-2-carboxylic acid,l-5-oxoproline,l-proline, 5-oxo PubChem CID: 7405 ChEBI: CHEBI:18183 IUPAC Name: (2S)-5-oxopyrrolidine-2-carboxylic acid SMILES: OC(=O)C1CCC(=O)N1