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Stannic oxide, is the inorganic compound with the formula SnO2. The mineral form of SnO2 is called cassiterite, and this is the main ore of tin
S 2505 (OTTO) Stannic oxide, 99% Cas 18282-10-5 - used as a catalyst for the oxidation of aromatic compounds in the synthesis of carboxylic acids and acid anhydrides.