| Harmonised Commodity Description and Coding System (HS) - level 2 - Chapter | 
                    29 | 
                    Organic chemicals | 
                  
                
                  
                    | Harmonised Commodity Description and Coding System (HS) - level 4 - Article | 
                    291211 | 
                    Methanal "formaldehyde" | 
                  
                
                  
                    | Harmonised Commodity Description and Coding System (HS) - level 4 - Article | 
                    291212 | 
                    Ethanal "acetaldehyde" | 
                  
                
                  
                    | Harmonised Commodity Description and Coding System (HS) - level 4 - Article | 
                    291219 | 
                    Acyclic aldehydes, without other oxygen function (excl. methanal [formaldehyde] and ethanal [acetaldehyde]) | 
                  
                
                  
                    | Harmonised Commodity Description and Coding System (HS) - level 4 - Article | 
                    291221 | 
                    Benzaldehyde | 
                  
                
                  
                    | Harmonised Commodity Description and Coding System (HS) - level 4 - Article | 
                    291229 | 
                    Cyclic aldehydes, without other oxygen function (excl. benzaldehyde) | 
                  
                
                  
                    | Harmonised Commodity Description and Coding System (HS) - level 4 - Article | 
                    291241 | 
                    Vanillin "4-hydroxy-3-methoxybenzaldehyde" | 
                  
                
                  
                    | Harmonised Commodity Description and Coding System (HS) - level 4 - Article | 
                    291242 | 
                    Ethylvanillin "3-ethoxy-4-hydroxybenzaldehyde" | 
                  
                
                  
                    | Harmonised Commodity Description and Coding System (HS) - level 4 - Article | 
                    291249 | 
                    Aldehyde-alcohols, aldehyde-ethers, aldehyde-phenols and aldehydes with other oxygen function (excl. ethylvanillin "3-ethoxy-4-hydroxybenzaldehyde" and vanillin "4-hydroxy-3-methoxybenzaldehyde") | 
                  
                
                  
                    | Harmonised Commodity Description and Coding System (HS) - level 4 - Article | 
                    291250 | 
                    Cyclic polymers of aldehydes | 
                  
                
                  
                    | Harmonised Commodity Description and Coding System (HS) - level 4 - Article | 
                    291260 | 
                    Paraformaldehyde |