Copper(II) oxide, ROTI®nanoMETIC, min. 99 %, 15-50 nm, Molar mass (M) 79,55 g/mol, Density (D) 6,31 g/cm³, CAS No. [1317-38-0], UN-Nr. 3077, EG-Nr. 215-269-1, Empirical formula CuO