| CAS登录号 | 中文名 | 英文名 | 分子结构式 | 分子式 | 详情 | 供应商 |
| 120-73-0 | 嘌呤; 7H-咪唑[4,5-d]嘧啶 | Purine; 9H-Purine; 7H-Imidazo[4,5-d]pyrimidine |  | C5H4N4 | 详情 | 供应商 |
| 1753-48-6 | 2-氨基嘧啶-5-腈 | 2-Aminopyrimidine-5-carbonitrile; 2-Amino-5-pyrimidinecarbonitrile |  | C5H4N4 | 详情 | 供应商 |
| 25911-65-3 | 3-氨基吡嗪-2-甲腈 | 3-Aminopyrazine-2-carbonitrile; Pyrazinecarbonitrile,3-amino- (8CI,9CI); Pyrazinonitrile, 3-amino- (6CI); 2-Amino-3-cyanopyrazine; 3-Amino-2-pyrazinecarbonitrile; |  | C5H4N4 | 详情 | 供应商 |
| 89282-17-7 | Cyanamide,bis(cyanomethyl)- (9CI); Acetonitrile,(cyanoimino)di- (7CI) |  | C5H4N4 | 详情 | 供应商 | |
| 275-00-3 | Imidazo[1,2-b][1,2,4]triazine; Imidazo[1,2-b]-as-triazine(8CI); 1,3a,4,7-Tetraazaindene |  | C5H4N4 | 详情 | 供应商 | |
| 274-68-0 | Imidazo[1,5-a]-1,3,5-triazine(9CI); Imidazo[1,5-a]-s-triazine(8CI) |  | C5H4N4 | 详情 | 供应商 | |
| 4342-90-9 | Imidazo[2,1-c][1,2,4]triazine(9CI); Imidazo[2,1-c]-as-triazine(8CI) |  | C5H4N4 | 详情 | 供应商 | |
| 258828-10-3 | Pyrrolo[2,1-d]-1,2,3,5-tetrazine(9CI); Pyrrolo[2,1-d]-1,2,3,5-tetrazine (9CI) |  | C5H4N4 | 详情 | 供应商 | |
| 274-82-8 | 1,2,4-Triazolo[4,3-a]pyrazine(9CI); s-Triazolo[4,3-a]pyrazine(7CI,8CI); NSC 68466 |  | C5H4N4 | 详情 | 供应商 | |
| 274-87-3 | Tetrazolo[1,5-a]pyridine; 1,2,3-Triazaindolizine; NSC 109852; NSC 838; Pyridotetrazole |  | C5H4N4 | 详情 | 供应商 | |
| 272-57-1 | 1H-Pyrazolo[4,3-d]pyrimidine; 1,2,4,6-Tetraazaindene; 4,6-Diaza-1H-indazole |  | C5H4N4 | 详情 | 供应商 | |
| 273-94-9 | 1H-Imidazo[4,5-b]pyrazine; NSC 151667 |  | C5H4N4 | 详情 | 供应商 | |
| 271-80-7 | 1H-Pyrazolo[3,4-d]pyrimidine; 5,7-Diaza-1H-indazole; 5H-Pyrazolo[3,4-d]pyrimidine; NSC 82206 |  | C5H4N4 | 详情 | 供应商 | |
| 274-83-9 | 1,2,4-Triazolo[4,3-b]pyridazine; s-Triazolo[4,3-b]pyridazine(6CI,8CI); 1,2,3a,4-Tetraazaindene; 2,3,7-Triazaindolizine |  | C5H4N4 | 详情 | 供应商 | |
| 274-98-6 | 1,2,4-Triazolo[4,3-a]pyrimidine; s-Triazolo[4,3-a]pyrimidine(6CI,7CI,8CI); 1,2,3a,7-Tetraazaindene; 1,2,8-Triazaindolizine; 2,3,4-Triazaindolizine; NSC 404278 |  | C5H4N4 | 详情 | 供应商 | |
| 273-00-7 | 1H-Imidazo[4,5-d]pyridazine; 1,3,5,6-Tetraazaindene |  | C5H4N4 | 详情 | 供应商 | |
| 274-81-7 | 1,2,4-Triazolo[4,3-c]pyrimidine(9CI); s-Triazolo[4,3-c]pyrimidine(8CI); NSC 325509 |  | C5H4N4 | 详情 | 供应商 | |
| 245321-46-4 | 2-Pyrimidinecarbonitrile,4-amino-; 2-Pyrimidinecarbonitrile, 4-amino- (9CI); 4-aminopyrimidine-2-carbonitrile |  | C5H4N4 | 详情 | 供应商 | |
| 56621-93-3 | 2-Pyrimidinecarbonitrile,5-amino-; 2-Cyano-5-aminopyrimidine; 2-Cyano-5-pyrimidinamine; 5-Amino-2-cyanopyrimidine; 5-Amino-2-pyrimidinecarbonitrile |  | C5H4N4 | 详情 | 供应商 | |
| 13930-38-6 | 2H-Purine; 2H-Purine (8CI,9CI) |  | C5H4N4 | 详情 | 供应商 | |
