CPV code 24326100 designates Aldehyde function compounds in the Common Procurement Vocabulary (CPV 2008), the EU classification used to describe the subject of public contracts.
24326100 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 24326000 (Aldehyde, ketone, organic peroxides and ethers).