| 29121100 | Formaldehyde, Formalin, Methanal |
| 29121200 | Acetaldehyde, Acetic aldehyde, Ethanal, Ethylaldehyde |
| 29121900 | Acyclic aldehydes |
| 29122100 | Benzaldehyde, Benzene carbaldehyde, Benzenecarbonal, Benzenecarboxaldehyde, Benzoic aldehyde, Phenylmethanal |
| 29122900 | Alpha-amyl-beta-phenylacrolein, Alpha-amylcinnamaldehyde, Alpha-amylcinnamic aldehyde, Alpha-pentylcinnamaldehyde, Amylcinnamic aldehyde, Anthracene-9-aldehyde, Anthracene-9-carboxaldehyde, Chemicals,1,4-benzenedicarboxaldehyde, Chemicals,1,4-diformylbenz |
| 29124100 | Chemicals,2-hydroxy-m-anisaldehyde, Chemicals,2-methoxy-4-formylphenol, Chemicals,3-methoxy-4-hydroxybenzaldehyde, Chemicals,4-formyl-2-methoxyphenol, Chemicals,4-hydroxy-3-methoxybenzaldehyde, Chemicals,4-hydroxy-5-methoxybenzaldehyde, Chemicals,4-hydrox |
| 29124200 | Chemicals,3-ethoxy-4-hydroxybenzaldehyde, Ethyl protocatechualdehyde, Ethylvanillin |
| 29124900 | Acetaldol, Aldehyde-alcohols, Aldehyde-ethers, excluding vanillin and ethylvanillin, Aldehyde-phenols, Aldol, Anisaldehyde, Anisic aldehyde, Aubepine, Chemicals,2-ethoxybenzaldehyde, Chemicals,2-hydroxy-1-naphthaldehyde, Chemicals,2-hydroxy-3-methoxybenza |
| 29125000 | Chemicals,2,4,6-trimethyl-1,3,5-trioxane, Metaldehyde, not for use as solid fuel, Paraldehyde |
| 29126000 | Paraformaldehyde, Polyoxymethylene |
