can't read?
Copper(II) oxide or cupric oxide is the inorganic compound with the formula CuO. A black solid, it is one of the two stable oxides of copper, the other being Cu2O or cuprous oxide. A
C 3244 (OTTO) Copper(I) oxide ≥99.99% Cas 1317-39-1 - used chiefly as a pigment in ceramics and in antifouling paints.