| 29.32 | | Heterocyclic compounds with oxygen hetero -atom(s) only. |
| 29.32 | | Compounds containing an unfused furan ring (whether or not hydrogenated) in the structure : |
| 2932.11 | 000 | Tetrahydrofuran |
| 2932.13 | 000 | Furfuryl alcohol and tetrahydrofurfuryl alcohol |
| 2932.19 | 000 | Other |
| 2932.20 | | Lactones : |
| 2932.20 | 010 | 1 Coumarin, methylcoumarins and ethylcoumarins |
| 2932.20 | 020 | 2 Santonin |
| 2932.20 | 090 | 3 Other |
| 2932.20 | | Other |
| 2932.95 | 000 | Tetrahydrocannabinols (all isomers) |
| 2932.99 | 000 | Other |
| 29.33 | | Heterocyclic compounds with nitrogen hetero-atom(s) only. |
| 29.33 | | Compounds containing an unfused pyrazole ring (whether or not hydrogenated) in the structure : |
| 2933.11 | 000 | Phenazone (antipyrin) and its derivatives |
| 2933.19 | 000 | Other |
| 2933.19 | | Compounds containing an unfused imidazole ring (whether or not hydrogenated) in the structure : |
| 2933.21 | | Hydantoin and its derivatives |
| 2933.21 | 100 | - 3-Bromo-1-chloro-5-dimethylhydantoin |
| 2933.21 | 900 | - Other |
| 2933.29 | 000 | Other |
| 2933.29 | | Compounds containing an unfused pyridine ring (whether or not hydrogenated) in the structure : |
| 2933.31 | 000 | Pyridine and its salts |