CAS: 19662-59-0 Molecular Formula: C4H5CuO2 Molecular Weight (g/mol): 148.63 MDL Number: MFCD00080547,MFCD00156451,MFCD00080547 InChI Key: BFHDHRZKYIRNRP-UHFFFAOYSA-M PubChem CID: 121233728 IUPAC Name: copper;2-methylprop-2-enoic acid;hydrate SMILES: [Cu++].CC(=C)C([O-])=O