CAS: 59733-73-2 Molecular Formula: C20H24Fe2Na4O14+4 Molecular Weight (g/mol): 692.047 InChI Key: GNQHSDPSRBMMNX-UHFFFAOYSA-N Synonym: collman's reagent,collman inverted exclamation mark s reagent,disodium tetracarbonylferrate dioxane complex,tetrakis sodiomethylidyne oxidanium tetrakis carbon monoxide tris dioxane bis ?? 2-irondiuide PubChem CID: 71310151 IUPAC Name: tetrasodium;carbon monoxide;1,4-dioxane;iron SMILES: [C-]#[O+].[C-]#[O+].[C-]#[O+].[C-]#[O+].[C-]#[O+].[C-]#[O+].[C-]#[O+].[C-]#[O+].C1COCCO1.C1COCCO1.C1COCCO1.[Na+].[Na+].[Na+].[Na+].[Fe].[Fe]