CAS: 144693-65-2 Molecular Formula: C9H5NaO2 Molecular Weight (g/mol): 168.127 MDL Number: MFCD03426026 InChI Key: VXBLAFDQGACQAR-UHFFFAOYSA-M Synonym: sodium 4-ethynylbenzoate,4-ethynylbenzoic acid sodium salt,4-ethynyl-benzoic acid sodium salt,benzoic acid, 4-ethynyl-, sodium salt,benzoic acid,4-ethynyl-, sodium salt 1:1,4-ethynyl benzoic acid sodium salt,sodium p-ethynylbenzoate,acmc-20egl3,4-ethynylbenzoic acid sodium,4-ethynylbenzoic-acid sodium salt PubChem CID: 23720426 IUPAC Name: sodium;4-ethynylbenzoate SMILES: C#CC1=CC=C(C=C1)C(=O)[O-].[Na+]