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Neodymium(III) oxide or neodymium sesquioxide is the chemical compound composed of neodymium and oxygen with the formula Nd2O3.
N 1397 (OTTO) Neodymium oxide, 99.9% Cas 1313-97-9 - used to dope glass, including sunglasses, to make solid-state lasers, and to color glasses and enamels.