CPV code 24211200 designates Zinc peroxide in the Common Procurement Vocabulary (CPV 2008), the EU classification used to describe the subject of public contracts.
24211200 is a leaf code — the most specific level of its branch — so it can be used directly as the main CPV code of a contract notice. If it does not quite fit, check the neighbouring codes under 24211000 (Zinc oxide and peroxide, titanium oxide, dyes and pigments).