| 29 | | | HS Code for Organic chemicals |
| 2933 | | HS Code for Heterocyclic compounds with nitrogen hetero-atom(s) only |
| | 29336100 | Melamine (melamine) |
| | 29336910 | Cyanuric chloride |
| | 29336921 | Isocyanuric acid |
| | 29336922 | Trichloroisocyanuric acid |
| | 29336929 | Other isocyanuric acid chlorinated derivatives |
| | 29336990 | Other structures containing non-fused triazine ring compounds (whether or not hydrogenated) |
| | 29337100 | 6-caprolactam |
| | 29337200 | Chloramphenicol and methylepiperone |
| | 29337900 | Other lactam |
| | 29339100 | Alprazolam, carbamazepam and their salts |
| | 29339200 | Methylthiophosphate (iso) |
| | 29339900 | Other heterocyclic compounds containing only nitrogen heteroatoms |
| 2934 | | HS Code for Nucleic acids and their salts;whether or not chemically defined; other heterocyclic compounds |
| | 29341000 | Structures containing non-fused thiazole rings (whether or not hydrogenated) |
| | 29342000 | Compounds containing a benzothiazole ring system (but without further fusing, whether or not hydrogenated) |
| | 29343000 | A compound containing a phenothiazine ring system |
| | 29349100 | Amierere, bromotiazole, chlorothiazepam and their salts |
| | 29349910 | Sultone and sultone |
| | 29349920 | Furazolidone |
| | 29349930 | Nucleic acids and their salts |
| | 29349940 | Nevirapine, efaviren, ritonavir and |
| | 29349950 | Clavulanic acid and its salts |
| | 29349960 | 7-phenylacetamido-3-chloromethyl-4-cephem |
| | 29349990 | Other heterocyclic compounds |