| CAS登录号 | 中文名 | 英文名 | 分子结构式 | 分子式 | 详情 | 供应商 |
| 98-97-5 | 2-甲酸吡嗪 | 2-Pyrazinecarboxylic acid; Pyrazinoic acid; Pyrazine-2-carboxylic acid |  | C5H4N2O2 | 详情 | 供应商 |
| 1122-61-8 | 4-硝基吡啶 | 4-Nitropyridine; 4-Nitropyridine; NSC 30350 |  | C5H4N2O2 | 详情 | 供应商 |
| 2164-61-6 | 3-羧基哒嗪; 哒嗪-3-羧酸 | 3-Pyridazinecarboxylic acid; Pyridazine-3-carboxylic acid |  | C5H4N2O2 | 详情 | 供应商 |
| 4595-61-3 | 嘧啶-5-羧酸 | 5-Pyrimidinecarboxylic acid |  | C5H4N2O2 | 详情 | 供应商 |
| 31462-59-6 | 4-嘧啶甲酸 | 4-Pyrimidinecarboxylic acid; Pyrimidine-4-carboxylic acid |  | C5H4N2O2 | 详情 | 供应商 |
| 31519-62-7 | 嘧啶-2-羧酸 | Pyrimidine-2-carboxylic acid; 2-Carboxypyrimidine |  | C5H4N2O2 | 详情 | 供应商 |
| 50681-25-9 | 4-哒嗪羧酸 | 4-Pyridazinecarboxylic acid; 4PYRIDAZINECARBOXYLICACID; PYRIDAZINE4CARBOXYLICACID; Pyridazine4DicarboxylicAcid; 4PYRIDAZINECARBOXYLICACID99%; 1(3METHOXYPHENYL)1PHENYLETHANOL |  | C5H4N2O2 | 详情 | 供应商 |
| 2530-26-9 | 3-硝基吡啶; 3-硝基吡啶; | Pyridine, 3-nitro-; 3-Nitropyridine; 5-Nitropyridine |  | C5H4N2O2 | 详情 | 供应商 |
| 15009-91-3 | 2-硝基吡啶 | Pyridine, 2-nitro-; 2-Nitropyridine; NSC 129217; NSC 159025 |  | C5H4N2O2 | 详情 | 供应商 |
| 13673-29-5 | Pyridine, 4-nitroso-,1-oxide; 4-Nitrosopyridine1-oxide; 4-Nitrosopyridine N-oxide |  | C5H4N2O2 | 详情 | 供应商 | |
| 274-23-7 | 1,3-Dioxolopyrimidine(8CI,9CI); 1,3-Dioxolopyrimidine (8CI,9CI) |  | C5H4N2O2 | 详情 | 供应商 | |
| 151141-40-1 | 1-Azatetracyclo[2.2.0.02,6.03,5]hexane,4-nitro-; 1-Azatetracyclo[2.2.0.02,6.03,5]hexane,4-nitro-(9CI) |  | C5H4N2O2 | 详情 | 供应商 | |
| 151141-41-2 | 1-Azatetracyclo[2.2.0.02,6.03,5]hexane,2-nitro-; 1-Azatetracyclo[2.2.0.02,6.03,5]hexane,2-nitro-(9CI) |  | C5H4N2O2 | 详情 | 供应商 | |
| 208984-17-2 | 3-Pyridinol, 2-nitroso-; 3-Pyridinol,2-nitroso-(9CI) |  | C5H4N2O2 | 详情 | 供应商 | |
| 208984-16-1 | 2(1H)-Pyridinone,3-nitroso-; 2(1H)-Pyridinone,3-nitroso-(9CI) |  | C5H4N2O2 | 详情 | 供应商 | |
| 177725-65-4 | 4-Pyridinol, 3-nitroso-; 4-Hydroxy-3-nitrosopyridine |  | C5H4N2O2 | 详情 | 供应商 | |
| 98136-87-9 | 4-Pyrimidinecarboxaldehyde,1,6-dihydro-6-oxo-; 6-Hydroxypyrimidine4-carboxaldehyde; NSC 40841 |  | C5H4N2O2 | 详情 | 供应商 | |
| 16357-82-7 | 5-Pyrimidinecarboxaldehyde,1,6-dihydro-6-oxo-; 5-Pyrimidinecarboxaldehyde,4-hydroxy- (8CI) |  | C5H4N2O2 | 详情 | 供应商 | |
| 166757-62-6 | 5-Pyrimidinecarboxaldehyde,1,2-dihydro-2-oxo-; 5-Formyl-2(1H)-pyrimidinone |  | C5H4N2O2 | 详情 | 供应商 | |
