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Copper(II) oxide or cupric oxide is the inorganic compound with the formula CuO.
C 3663 (OTTO) Copper(II) oxide, 99.9995% Cas no 1317-38-0 - used in chemical sensors and superconducting materials. C 3663 (OTTO) Copper(II) oxide, 99.9995% Cas no 1317-38-0 - used as pigments for coloring glass, ceramics, porcelain.