| CAS登录号 | 中文名 | 英文名 | 分子结构式 | 分子式 | 详情 | 供应商 |
| 504-30-3 | 3-哒嗪酮 | 3(2H)-Pyridazinone; Pyridazin-3(2H)-one |  | C4H4N2O | 详情 | 供应商 |
| 557-01-7 | 2-羟基嘧啶 | 2-Hydroxypyrimidine; 1H-Pyrimidin-2-one |  | C4H4N2O | 详情 | 供应商 |
| 1457-42-7 | 哒嗪N-氧化物 | Pyridazine N-oxide; NSC 343739; Pyridazine N-oxide; Pyridazine oxide |  | C4H4N2O | 详情 | 供应商 |
| 3034-50-2 | 4-咪唑甲醛; 咪唑-4-甲醛; 4-甲酰基咪唑 | 1H-Imidazole-4-carbaldehyde; 1H-Imidazole-4-carboxaldehyde(9CI); Imidazole-4(or 5)-carboxaldehyde (6CI,7CI); Imidazole-4-carboxaldehyde(8CI); 1H-Imidazol-4-carboxaldehyde; 1H-Imidazol-4-ylcarboxaldehyde; 1H-Imidazole-4-carbaldehyde; 3H-Imidazole-4-carboxaldehyde; 4(5)-Imidazolecarboxaldehyde; 4-Formylimidazole; 5-Imidazolecarboxaldehyde; NSC400521; Imidazole-4-Carboxaldehyde; |  | C4H4N2O | 详情 | 供应商 |
| 3197-61-3 | 1-甲酰基咪唑; 1H-咪唑-1-甲醛 | 1H-Imidazole-1-carboxaldehyde; Imidazole,1-formyl- (8CI); Imidazole-1-carboxaldehyde (7CI); 1-Formyl-1H-imidazole; 1-Formylimidazole; N-Formylimidazole |  | C4H4N2O | 详情 | 供应商 |
| 4562-27-0 | 4-嘧啶酮 | 4-Pyrimidinol; Uraeil |  | C4H4N2O | 详情 | 供应商 |
| 6270-63-9 | 2-羟基吡嗪 | 2-Hydroxypyrazine; Pyrazin-2(1H)-one; 1H-Pyrazin-2-one |  | C4H4N2O | 详情 | 供应商 |
| 10111-08-7 | 2-咪唑甲醛; 2-甲酰基咪唑 | Imidazole-2-carboxaldehyde; 1H-Imidazole-2-carbaldehyde; 2-Formylimidazole |  | C4H4N2O | 详情 | 供应商 |
| 26456-59-7 | 5-羟基嘧啶 | 5-Hydroxypyrimidine; 5-Pyrimidinol |  | C4H4N2O | 详情 | 供应商 |
| 35344-95-7 | 1H-吡唑-4-甲醛 | 1H-Pyrazole-4-carboxaldehyde; 4-Formylpyrazole; 4-Pyrazolecarboxaldehyde |  | C4H4N2O | 详情 | 供应商 |
| 51953-17-4 | 4(3H)-嘧啶酮; 4-羟基嘧啶 | 4(3H)-Pyrimidone; 4-Hydroxypyrimidine |  | C4H4N2O | 详情 | 供应商 |
| 51953-18-5 | 4-羟基嘧啶 | 4-Pyrimidinol; 4-Hydroxypyrimidine |  | C4H4N2O | 详情 | 供应商 |
| 17043-94-6 | 嘧啶 N-氧化物 | Pyrimidine-1-oxide |  | C4H4N2O | 详情 | 供应商 |
| 2423-65-6 | Pyrazine, 1-oxide; NSC 341054; Pyrazine N-monoxide; Pyrazine N-oxide; Pyrazine mono-N-oxide; Pyrazinemonooxide; Pyrazine oxide |  | C4H4N2O | 详情 | 供应商 | |
| 3920-50-1 | 1H-吡唑-3-甲醛 | 1H-Pyrazole-3-carboxaldehyde; Pyrazole-3(or5)-carboxaldehyde (7CI); Pyrazole-3-carboxaldehyde (8CI); 3-Formylpyrazole; Pyrazolyl-3-carboxaldehyde |  | C4H4N2O | 详情 | 供应商 |
| 948552-36-1 | 1H-Pyrazole-5-carboxaldehyde |  | C4H4N2O | 详情 | 供应商 | |
| 738553-66-7 | 4(5H)-Pyrimidinone; 4(5H)-Pyrimidinone (9CI) |  | C4H4N2O | 详情 | 供应商 | |
| 20733-10-2 | 4-Pyridazinol; 4-Hydroxypyridazine |  | C4H4N2O | 详情 | 供应商 | |
| 220560-88-3 | 5(2H)-Pyrimidinone; 5(2H)-Pyrimidinone (9CI) |  | C4H4N2O | 详情 | 供应商 | |
| 220560-87-2 | 5(4H)-Pyrimidinone; 5(4H)-Pyrimidinone (9CI) |  | C4H4N2O | 详情 | 供应商 | |
