| 1 | 293339 | 其他结构上含有一个非稠合吡啶环的化合物 | Heterocyclic compounds with nitrogen hetero-atom[s] only, containing an unfused pyridine ring, whether or not hydrogenated, in the structure (excluding pyridine, piperidine, alfentanil "INN", anileridine "INN", bezitramide "INN", bromazepam "INN", difenoxin "INN", diphenoxylate "INN", dipipanone "INN", fentanyl "INN", ketobemidone "INN", methylphenidate "INN", pentazocine "INN", pethidine "INN", pethidine "INN" intermediate A, phencyclidine "INN" "PCP", phenoperidine "INN", pipradol "INN", piritramide "INN", propiram "INN", trimeperidine "INN", and salts thereof, and inorganic or organic compounds of mercury) | 10 |
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| 2 | 293299 | 其他仅含有氧杂原子的杂环化合物 | Heterocyclic compounds with oxygen hetero-atom[s] only (excluding compounds containing unfused furan ring, whether or not hydrogenated, in the structure, and lactones, isosafrole, 1-[1,3-benzodioxol-5-yl]propan-2-one, piperonal, safrole, tetrahydrocannabinols "all isomers", and inorganic or organic compounds of mercury) | 7 |
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| 3 | 292249 | 其他氨基酸、氨基酸酯及其盐 | Amino-acids and their esters; salts thereof (excluding those with > one kind of oxygen function, lysine and its esters, and salts thereof, and glutamic acid, anthranilic acid, tilidine "INN", and salts thereof) | 5 |
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