CAS: 90965-06-3 Molecular Formula: C5H9N2O4P Molecular Weight (g/mol): 192.111 MDL Number: MFCD07368360 InChI Key: SQHSJJGGWYIFCD-UHFFFAOYSA-N Synonym: (1-Diazo-2-oxopropyl)phosphonic Acid Dimethyl Ester, Dimethyl 1-Diazoacetonylphosphonate, 1-Diazoacetonylphosphonic Acid Dimethyl Ester, Ohira-Bestmann Reagent PubChem CID: 53397103 IUPAC Name: 1-diazonio-1-dimethoxyphosphorylprop-1-en-2-olate SMILES: CC(=C([N+]#N)P(=O)(OC)OC)[O-]