| 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 |
| 5780-66-5 | 2-吡嗪甲醛; 吡嗪-2-甲醛 | Pyrazine-2-carbaldehyde; Pyrazinecarboxaldehyde | ![]() | C5H4N2O | 详情 | 供应商 |
| 10070-92-5 | 嘧啶-5-甲醛 | Pyrimidine-5-carboxaldehyde; Pyrimidine-5-carboxyaldehyde | ![]() | C5H4N2O | 详情 | 供应商 |
| 14915-37-8 | 双(1-羟基-1H-吡啶-2-硫代硫酸-O,S)铜 | Bis(1-hydroxy-1H-pyridine-2-thionato-O,S)copper; 2-Pyridinethiol,1-oxide, Cu deriv. (6CI); Copper, bis(1-hydroxy-2(1H)-pyridinethionato)-(7CI,8CI); Copper, bis(1-hydroxy-2(1H)-pyridinethionato-O,S)-; 2(1H)-Pyridinethione, 1-hydroxy-, copper complex; Bis(2-pyridinethiol1-oxide)copper; Copper Omadine; NSC 290408; OM 1562; Omadine, cupric; | ![]() | 2(C5H4NOS).Cu | 详情 | 供应商 |
| 27427-92-5 | 2-嘧啶甲醛 | 2-Pyrimidinecarboxaldehyde; 2-Formylpyrimidine; Pyrimidine-2-aldehyde | ![]() | C5H4N2O | 详情 | 供应商 |
| 5919-15-3 | Furan, 2-(diazomethyl)-(7CI,8CI,9CI); 2-Furyldiazomethane | ![]() | C5H4N2O | 详情 | 供应商 | |
| 672-81-1 | Propanedinitrile,2-(methoxymethylene)-; Malononitrile,(methoxymethylene)- (6CI,7CI,8CI); Propanedinitrile, (methoxymethylene)- (9CI); (Methoxymethylene)malononitrile; a-Cyano-b-methoxyacrylonitrile | ![]() | C5H4N2O | 详情 | 供应商 | |
| 4513-94-4 | 吡咯-2-甲腈; 吡咯-2-甲腈 | 1H-Pyrrole-2-carbonitrile; Pyrrole-2-carbonitrile(6CI,7CI,8CI); 2-Cyanopyrrole; NSC 106054 | ![]() | C5H4N2 | 详情 | 供应商 |
| 40090-74-2 | 1H-Pyrrole-2-carbonitrile,1-hydroxy-; 1-Hydroxy-2-pyrrolecarbonitrile; 2-Cyano-N-hydroxypyrrole; NSC 219504 | ![]() | C5H4N2O | 详情 | 供应商 | |
| 7126-38-7 | 1H-Pyrrole-3-carbonitrile; Pyrrole-3-carbonitrile(7CI,8CI); 3-Cyanopyrrole | ![]() | C5H4N2 | 详情 | 供应商 | |
| 1192-27-4 | 2,4-Cyclopentadien-1-imine,N-imino-; 1,3-Cyclopentadiene,5-diazo- (8CI,9CI); Cyclopentadiene, 5-diazo- (6CI,7CI); 5-Diazo-1,3-cyclopentadiene; Diazocyclopentadiene | ![]() | C5H4N2 | 详情 | 供应商 | |
| 24843-39-8 | 2-Pyridinylnitrene | ![]() | C5H4N2*2 | 详情 | 供应商 | |
| 809533-78-6 | 2-Oxazoleacetonitrile; 2-Cyanomethyl-1,3-oxazole | ![]() | C5H4N2O | 详情 | 供应商 | |
| 57351-99-2 | 磷酸酯淀粉 | 3-Isoxazolecarbonitrile,5-methyl-; 3-Cyano-5-methylisoxazole | ![]() | C5H4N2O | 详情 | 供应商 |
| 2435-50-9 | 嘧啶-4-甲醛 | 4-Pyrimidinecarboxaldehyde; 4-Formylpyrimidine | ![]() | C5H4N2O | 详情 | 供应商 |
| 1003-52-7 | 5-Oxazolecarbonitrile,4-methyl-; 4-Methyl-5-cyanooxazole; 4-Methyl-5-oxazolecarbonitrile; 5-Cyano-4-methyloxazole | ![]() | C5H4N2O | 详情 | 供应商 | |
| 21032-48-4 | 2-(Dimethylsilyl)pyridine | ![]() | (C5H4N)Si(CH3)2H | 详情 | 供应商 | |
| 60170-83-4 | 哒嗪-3-甲醛 | 3-PYRIDAZINECARBALDEHYDE,97%; 3-PYRIDAZINECARBALDEHYDE,97%; 3-Pyridazinecarbaldehyde; 3-Pyridazinecarboxaldehyde (6CI, 9CI); pyridazine-3-carbaldehyde | ![]() | C5H4N2O | 详情 | 供应商 |
| 62948-75-8 | URIC ACID (1,3-15N2); URIC ACID (1,3-15N2); URIC ACID-1,3-15N2, 99 ATOM % 15N; URIC ACID-13-15N2 99% | ![]() | C5H4N2(15N)2O3 | 详情 | 供应商 | |
| 7717-24-0 | 2-pentenedinitrile | ![]() | C5H4N2 | 详情 | 供应商 | |