| 2921.45 | | 1-Naphthylamine ( α-Naphthylamine), 2-Naphthylamine ( β-Naphthylamine), and their derivatives; salts thereof: | | | | |
| 2921.51 | | Aromatic polyamines and their derivatives; salts thereof: | | | | |
| 2921.51 | | o-, ￠/ p-Phenylenediamine, diaminotoluenes, and their derivatives; salts thereof: | | | | |
| 2922.11.00 | 00 | Amino-alcohols, other than those containing more than one kind of oxygen function, their ethers and esters; salts thereof: | | | | |
| 2922.19.95 | 10 | N,N-Dialkyl (methyl, ethyl, n-propyl or isopropyl)-2-aminoethanols and their protonated salts: | | | | |
| 2922.19.95 | 10 | N,N-Dimethyl-2-aminoethanol, N,N-diethyl-2-aminoethanol and their protonated salts | kg | | | |
| 2922.21 | | Amino-naphthols and other amino-phenols, other than those containing more than one kind of oxygen function, their ethers and esters; salts thereof: | | | | |
| 2922.21 | | Aminohydroxynaphthalenesulfonic acids and their salts: | | | | |
| 2922.41.00 | | Amino-acids, other than those containing more than one kind of oxygen function, and their esters; salts thereof: | | | | |
| 2924.11.00 | 00 | Acyclic amides (including acyclic carbamates) and their derivatives; salts thereof: | | | | |
| 2924.21 | | Cyclic amides (including cyclic carbamates) and their derivatives; salts thereof: | | | | |
| 2924.21 | | Ureines and their derivatives; salts thereof: | | | | |
| 2925.11.00 | 00 | Imides and their derivatives; salts thereof: | | | | |
| 2925.21.00 | 00 | Imines and their derivatives; salts thereof: | | | | |
| 2930 | | X. ORGANO-INORGANIC COMPOUNDS, HETEROCYCLIC COMPOUNDS, NUCLEIC ACIDS AND THEIR SALTS, AND SULFONAMIDES | | | | |
| 2930.90.91 | 23 | N,N-Dialkyl (methyl, ethyl, n-propyl or isopropyl)aminoethane-2-thiols and their protonated salts | kg | | | |
| 2934 | | Nucleic acids and their salts, whether or not chemically defined; other heterocyclic compounds: | | | | |
| 2936.21.00 | 00 | Vitamins and their derivatives, unmixed: | | | | |
| 2936.21.00 | 00 | Vitamins A and their derivatives | kg | Free | | 25% |
| 2936.29 | | Other vitamins and their derivatives: | | | | |
| 2936.29.50 | 20 | Vitamins D and their derivatives | kg | | | |
| 2937.11.00 | 00 | Polypeptide hormones, protein hormones and glycoprotein hormones, their derivatives and structural analogues: | | | | |
| 2937.21.00 | | Steroidal hormones, their derivatives and structural analogues: | | | | |
| 2937.31.00 | 00 | Catecholamine hormones, their derivatives and structural analogues: | | | | |
| 2937.50.00 | 00 | Prostaglandins, thromboxanes and leukotrienes, their derivatives and structural analogues | g | Free | | 25% |
